#functions — Public Fediverse posts

CSS Math “random()” in Production: Native Randomness Without JavaScript, by (not on Mastodon or Bluesky):

https://www.sitepoint.com/css-mathrandom-in-production-native-randomness-without-javascript/

#css #math #functions #randomness #javascript #performance #accessibility

The Importance of Native Randomness in CSS, by @alvaromontoro (@csstricks):

https://css-tricks.com/the-importance-of-native-randomness-in-css/

#css #randomness #functions

New #tutorial just dropped 🚀
https://youtu.be/JtJzO4VqGHU

We kept rewriting the same #workflow chunks logic… so we #fixed it.

This one is about #Lambda Workflows:
→ reuse parts of your workflows
→ pass inputs
→ get outputs

Basically… workflows that act like #functions.
This one feels like a big step forward 😄

v0.2.2 is live → would love your #feedback 🙌
https://awflow.io

#AI #LLM #lowcode #nocode

P.S.Villar et al. (2026) studied #evolutionary aspects of the #copulatoryorgan in #male #octopuses and describe it as #multifunctional organ that performs two key #functions: the #hectocotylus is a specialized tentacle that delivers #spermatophores into the #female's #mantlecavity. But the authors identified it also as #chemotactile #receptor for #progesterone during #materecognition.
©#StefanFWirth

support me?
https://ko-fi.com/sfwirth

Ref
https://doi.org/10.1126/science.aec9652

Figs
©S.F.Wirth,#AI assisted

More Easy Light-Dark Mode Switching: “light-dark()” Is About to Support Images, by @bramus:

https://www.bram.us/2026/03/19/more-easy-light-dark-mode-switching-light-dark-is-about-to-support-images/

#css #functions #images #darkmode

Why doesn't #Mathematica simplify sinh(arccosh(x))? Because apparently, it takes a PhD in #Trigonometry, a magnifying glass, and a deep existential crisis to venture into that rabbit hole. 🤔🔍 Just when you thought it was all about cosines and sines, hyperbolics crash the party and demand their own dissertation. 📚🎉
https://www.johndcook.com/blog/2026/03/10/sinh-arccosh/ #Hyperbolic #Functions #MathProblems #ExistentialCrisis #HackerNews #ngated

#Development #Introductions
Native random values in CSS · A first look at the upcoming capabilities https://ilo.im/16ayh1

_____
#ModernCSS #Randomness #Functions #Safari #Browsers #WebDev #Frontend #CSS

Enzo’s Cucina Reveals Why Italian Cuisine Remains a Top Choice for Events and Functions https://www.diningandcooking.com/2525382/enzos-cucina-reveals-why-italian-cuisine-remains-a-top-choice-for-events-and-functions-2/ #a #And #choice #cucina #cuisine #culinary #CulinaryTraditions #Enzo’s #events #for #functions #Italia #Italian #ItalianCulinary #ItalianCulinaryTraditions #italiano #italy #Remains #reveals #top #why

Spiral Scrollytelling in CSS With “sibling-index()”, by @csstricks:

https://css-tricks.com/spiral-scrollytelling-in-css-with-sibling-index/

#css #functions #scrolling #gsap

A Brief Course Of Higher Mathematics by V.A. Kudryavtsev

The aim of this text is to set forth the essentials of higher mathematics and their applications in various fields. At present higher mathematics serves as the theoretical foundation for most branches of the natural, applied and engineering sciences. Therefore, every natural scientist must necessarily master its methods to be able to apply them for practical purposes.

Translated from the Russian by Leonid Levant

Many thanks to Guptaji for the scans and Balram Sharmaji of Kamgaar Prakashan for making this book available.

You can get the book here and here

Follow us on

Twitter https://x.com/MirTitles

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Tumblr https://www.tumblr.com/mirtitles

Internet Archive https://archive.org/details/mir-titles

Fork us on gitlab https://gitlab.com/mirtitles

Contents

INTRODUCTION

Chapter 1. The Rectangular Coordinate System in the Plane and Its Application to Simple Problems
Sec. 1. Rectangular Coordinates of a Point in the Plane
Sec. 2. Transformation of Rectangular Coordinates
Sec. 3. The Distance Between Two Points in the Plane
Sec. 4. Dividing a Line Segment in a Given Ratio
Sec. 5. The Area of a Triangle
Exercises

Chapter 2. The Equation of a Line
Sec. 6. Sets
Sec. 7. The Method of Coordinates in the Plane
Sec. 8. The Line as a Set of Points
Sec. 9. The Equation of a Line in the Plane
Sec. 10. Constructing a Line on the Basis of Its Equation
Sec. 11. Some Elementary Problems
Sec. 12. Two Basic Problems of Plane Analytical Geometry
Sec. 13. Algebraic Lines
Exercises

Chapter 3. The Straight Line
Sec. 14. The Equation of a Straight Line
Sec. 15. The Angle Between Two Straight Lines
Sec. 16. The Equation of a Straight Line Passing Through a Given Point in a Given Direction
Sec. 17. The Equation of a Straight Line Passing Through Two Points (Two-Point Form)
Sec. 18. The Intercept Form of the Equation of a Straight Line
Sec. 19. The Point of Intersection of Two Straight Lines
Sec. 20. The Distance from a Point to a Straight Line
Exercises

Chapter 4. Second-Order Lines
Sec. 21. The Circle
Sec. 22. Central Second-Order Curves (Conics)
Sec. 23. Focal Properties of Central Curves of the Second Order
Sec. 24. The Ellipse as a Uniformly Compressed Circle
Sec. 25. The Asymptotes of a Hyperbola
Sec. 26. The Graph of Inverse Proportionality
Sec. 27. Noncentral Quadric Curves
Sec. 28. The Focal Property of the Parabola
Sec. 29. The Graph of a Quadratic Trinomial
Exercises

Chapter 5. Polar Coordinates. Parametric Equations of a Line
Sec. 30. Polar Coordinates
Sec. 31. Relationship Between Rectangular and Polar Coordinates
Sec. 32. Parametric Equations of a Line
Sec. 33. Parametric Equations of the Cycloid
Exercises

Chapter 6. Functions
Sec. 34. Constants and Variables
Sec. 35. The Concept of Function
Sec. 36. Simplest Functional Relations
1. Direct Proportional Relation
2. Linear Relation
3. Inverse Proportional Relation
4. Quadratic Relation
5. Sinusoidal Relation
Sec. 37. Methods of Representing Functions
1. The Analytical Method
2. The Tabular Method
3. The Graphical Method
Sec. 38. The Concept of Function of Several Variables
Sec. 39. Implicit Function
Sec. 40. Inverse Function
Sec. 41. Classification of Functions of One Argument
Sec. 42. The Graphs of the Basic Elementary Functions
Sec. 43. Interpolation of Functions
Exercises

Chapter 7. The Theory of Limits
Sec. 44. Real Numbers
Sec. 45. Errors of Approximate Numbers
Sec. 46. Limit of a Function
Sec. 47. One-Sided Limits of a Function
Sec. 48. Limit of a Sequence
Sec. 49. Infinitesimals
Sec. 50. Infinitely Large Quantities
Sec. 51. Basic Properties of Infinitesimals
Sec. 52. Basic Limit Theorems
Sec. 53. Some Tests for the Existence of the Limit of a Function
Sec. 54. The Limit of X
Sec. 55. The Number e
Sec. 56. Natural Logarithms
Sec. 57. Asymptotic Formulas
Exercises

Chapter 8. Continuity of Functions
Sec. 58. Increments of an Argument and a Function. Continuity of a Function
Sec. 59. Another Definition of the Continuity of a Function
Sec. 60. Continuity of Basic Elementary Functions
Sec. 61. Basic Theorems on Continuous Functions
Sec. 62. Evaluation of Indeterminacies
Sec. 63. Classification of the Points of Discontinuity of a Function
Exercises

Chapter 9. The Derivative of a Function
Sec. 64. A Tangent to a Curve – 159
Sec. 65. Velocity of a Moving Point – 161
Sec. 66. The Derivative Defined Generally – 163
Sec. 67. Other Applications of the Derivative – 166
Sec. 68. Relation Between the Continuity and Differentiability of a Function – 167
Sec. 69. The Notion of an Infinite Derivative – 169
Exercises – 169

Chapter 10. Basic Derivative Theorems
Sec. 70. Introductory Notes – 170
Sec. 71. The Derivatives of Certain Simple Functions – 170
Sec. 72. Basic Differentiation Rules – 174
Sec. 73. The Derivative of a Composite Function – 179
Sec. 74. The Derivative of an Inverse Function – 182
Sec. 75. The Derivative of an Implicit Function – 184
Sec. 76. The Derivative of a Logarithmic Function – 185
Sec. 77. A Logarithmic Derivative – 188
Sec. 78. The Derivative of an Exponential Function – 188
Sec. 79. The Derivative of a Power Function – 190
Sec. 80. The Derivatives of Inverse Trigonometric Functions – 191
Sec. 81. The Derivative of a Function Represented Parametrically – 193
Sec. 82. The Table of Differentiation Formulas – 194
Sec. 83. Derivatives of Higher Orders – 195
Sec. 84. Physical Meaning of the Second Derivative – 195
Exercises – 196

Chapter 11. Applications of Derivatives
Sec. 85. The Theorem About Finite Increments of a Function and Its Corollaries – 199
Sec. 86. Increase and Decrease of a Function of One Argument – 201
Sec. 87. L’Hospital’s Rule – 204
Sec. 88. Taylor’s Formula for a Polynomial – 208
Sec. 89. Binomial Formula – 210
Sec. 90. Taylor’s Formula for a Function – 211
Sec. 91. Maxima and Minima of a Function of One Variable – 213
Sec. 92. Concavity and Convexity of the Graph of a Function. Points of Inflection – 220
Sec. 93. Approximate Solution of Equations – 223
Sec. 94. Construction of Graphs of Functions – 227
Exercises – 230

Chapter 12. Differentials
Sec. 95. The Differential of a Function – 232
Sec. 96. Relation Between the Differential of a Function and Its Derivative. The Differential of the Independent Variable – 235
Sec. 97. The Geometrical Meaning of the Differential – 237
Sec. 98. The Physical Meaning of the Differential – 237
Sec. 99. Approximate Calculation of Small Increments of a Function – 238
Sec. 100. Equivalence of the Increment and Differential of a Function – 239
Sec. 101. Properties of the Differential – 242
Sec. 102. Differentials of Higher Orders – 245
Exercises – 247

Chapter 13. Indefinite Integral
Sec. 103. Antiderivative. Indefinite Integral – 248
Sec. 104. Basic Properties of the Indefinite Integral – 251
Sec. 105. Table of Simplest Indefinite Integrals – 253
Sec. 106. Independence of the Form of an Indefinite Integral of the Argument Chosen – 254
Sec. 107. Basic Integration Methods – 258
Sec. 108. Techniques for Integrating Rational Fractions with a Quadratic Denominator – 263
Sec. 109. Integration of Simplest Irrational Expressions – 267
Sec. 110. Integration of Trigonometric Functions – 269
Sec. 111. Integration of Certain Transcendental Functions – 271
Sec. 112. Cauchy’s Theorem. Some Important Integrals Inexpressible in Terms of Elementary Functions – 271
Exercises – 272

Chapter 14. The Definite Integral
Sec. 113. The Concept of the Definite Integral – 275
Sec. 114. A Definite Integral with a Variable Upper Limit – 277
Sec. 115. Geometrical Meaning of the Definite Integral – 279
Sec. 116. Physical Meaning of the Definite Integral – 281
Sec. 117. Basic Properties of the Definite Integral – 282
Sec. 118. The Mean Value Theorem – 286
Sec. 119. Integration by Parts in the Definite Integral – 288
Sec. 120. Change of Variable in the Definite Integral (Integration by Substitution) – 289
Sec. 121. The Definite Integral as the Limit of an Integral Sum – 291
Sec. 122. Approximate Evaluation of Definite Integrals – 293
Sec. 123. Simpson’s Formula – 296
Sec. 124. Improper Integrals – 297
Exercises – 299

Chapter 15. Applications of the Definite Integral
Sec. 125. Areas in Rectangular Coordinates – 301
Sec. 126. Areas in Polar Coordinates – 305
Sec. 127. The Arc Length in Rectangular Coordinates – 307
Sec. 128. The Arc Length in Polar Coordinates – 313
Sec. 129. Computing the Volume of a Solid by Known Cross Sections – 314
Sec. 130. The Volume of a Solid of Revolution – 316
Sec. 131. The Work of a Variable Force – 319
Sec. 132. Other Applications of the Definite Integral in Physics – 320
Exercises – 322

Chapter 16. Complex Numbers
Sec. 133. Arithmetic Operations on Complex Numbers – 325
Sec. 134. The Complex Plane – 326
Sec. 135. Theorems on the Modulus and Argument – 328
Sec. 136. Taking the Root from a Complex Number – 329
Sec. 137. The Concept of a Function of a Complex Variable – 331
Exercises – 332

Chapter 17. Determinants of Second and Third Order
Sec. 138. Second-Order Determinants – 335
Sec. 139. A System of Two Homogeneous Equations in Three Unknowns – 335
Sec. 140. Third-Order Determinants – 337
Sec. 141. Basic Properties of Determinants – 339
Sec. 142. A System of Three Linear Equations – 342
Sec. 143. A Homogeneous System of Three Linear Equations – 344
Sec. 144. A System of Linear Equations in Many Unknowns. Gauss’ Method – 346
Exercises – 349

Chapter 18. Fundamentals of Vector Algebra
Sec. 145. Scalars and Vectors – 351
Sec. 146. The Sum of Several Vectors – 352
Sec. 147. The Difference of Vectors – 353
Sec. 148. Multiplication of a Vector by a Scalar – 353
Sec. 149. Collinear Vectors – 354
Sec. 150. Coplanar Vectors – 355
Sec. 151. The Projection of a Vector on an Axis – 356
Sec. 152. The Rectangular Cartesian Coordinates in Space – 359
Sec. 153. The Length and Direction of a Vector – 360
Sec. 154. The Distance Between Two Points in Space – 361
Sec. 155. Operations on Vectors Represented in the Coordinate Form – 362
Sec. 156. Scalar Product of Two Vectors – 364
Sec. 157. Scalar Product of Vectors in the Coordinate Form – 366
Sec. 158. Vector Product of Vectors – 367
Sec. 159. Vector Product in the Coordinate Form – 369
Sec. 160. Triple Scalar Product – 371
Exercises – 373

Chapter 19. Fundamentals of Solid Analytic Geometry
Sec. 161. The Equations of a Surface and a Line in Space – 374
Sec. 162. The General Equation of a Plane – 380
Sec. 163. Angle Between Two Planes – 382
Sec. 164. Equations of a Straight Line in Space – 383
Sec. 165. The Derivative of a Vector Function – 387
Sec. 166. The Equation of a Sphere – 389
Sec. 167. The Equation of an Ellipsoid – 391
Sec. 168. The Equation of a Paraboloid of Revolution – 392
Exercises – 393

Chapter 20. Functions of Several Variables
Sec. 169. The Concept of a Function of Several Variables – 395
Sec. 170. Continuity – 398
Sec. 171. Partial Derivatives of the First Order – 401
Sec. 172. The Total Differential of a Function – 403
Sec. 173. Application of the Differential of a Function to Approximate Computations – 409
Sec. 174. Directional Derivatives – 410
Sec. 175. The Gradient – 413
Sec. 176. Partial Derivatives of Higher Orders – 417
Sec. 177. Test for the Total Differential – 418
Sec. 178. The Extremum (Maximum or Minimum) of a Function of Several Variables – 420
Sec. 179. An Absolute Extremum of a Function – 422
Sec. 180. Constructing Empirical Formulas by the Method of Least Squares – 424
Exercises – 428

Chapter 21. Series
Sec. 181. Examples of Infinite Series – 430
Sec. 182. Convergence of a Series – 431
Sec. 183. A Necessary Condition for Convergence of a Series – 435
Sec. 184. Comparison Tests – 437
Sec. 185. D’Alembert’s Test for Convergence – 440
Sec. 186. Absolute Convergence – 444
Sec. 187. Alternating Series. Leibniz’ Test – 446
Sec. 188. Power Series – 447
Sec. 189. Differentiation and Integration of Power Series – 450
Sec. 190. Expanding a Given Function into a Power Series – 450
Sec. 191. Maclaurin’s Series – 452
Sec. 192. Applying Maclaurin’s Series to Expanding Some Functions into Power Series – 453
Sec. 193. Applying Power Series to Approximate Calculations – 456
Sec. 194. Taylor’s Series – 459
Sec. 195. Series in a Complex Domain – 462
Sec. 196. Euler’s Formulas – 463
Sec. 197. Fourier Trigonometric Series – 464
Sec. 198. The Fourier Series of Even and Odd Functions – 473
Sec. 199. The Fourier Series of Nonperiodic Functions – 475
Exercises – 479

Chapter 22. Differential Equations
Sec. 200. Basic Concepts – 481
Sec. 201. Differential Equations of the First Order – 484
Sec. 202. First-Order Equations with Variables Separable – 486
Sec. 203. Homogeneous Differential Equations of the First Order – 492
Sec. 204. Linear Differential Equations of the First Order – 495
Sec. 205. Euler’s Method – 500
Sec. 206. Differential Equations of the Second Order – 502
Sec. 207. Integrable Types of Second-Order Differential Equations – 504
Sec. 208. Reducing the Order of a Differential Equation – 510
Sec. 209. Integrating Differential Equations with the Aid of Power Series – 513
Sec. 210. Common Properties of the Solutions of Second-Order Linear Homogeneous Differential Equations – 514
Sec. 211. Second-Order Linear Homogeneous Differential Equations with Constant Coefficients – 517
Sec. 212. Second-Order Linear Nonhomogeneous Differential Equations with Constant Coefficients – 523
Sec. 213. Differential Equations Containing Partial Derivatives – 533
Sec. 214. Linear Differential Equations with Partial Derivatives – 536
Sec. 215. Deriving the Heat Conduction Equation – 538
Sec. 216. The Problem on Temperature Distribution in a Limited Rod – 540
Exercises – 543
Chapter 23. Line Integrals
Sec. 217. The Line Integral of the First Kind – 546
Sec. 218. The Line Integral of the Second Kind – 548
Sec. 219. The Physical Meaning of the Line Integral of the Second Kind – 552
Sec. 220. Condition Under Which the Line Integral of the Second Kind is Independent of Path – 554
Sec. 221. The Work Performed by a Potential Force – 556
Exercises – 557

Chapter 24. Double and Triple Integrals
Sec. 222. Double Integrals – 561
Sec. 223. The Double Integral in Rectangular Cartesian Coordinates – 564
Sec. 224. Expressing a Double Integral in Polar Coordinates – 571
Sec. 225. The Euler-Poisson Integral – 575
Sec. 226. Mean-Value Theorem – 576
Sec. 227. Geometrical Applications of the Double Integral – 578
Sec. 228. Physical Applications of the Double Integral – 579
Sec. 229. Triple Integrals – 584
Exercises – 588

Chapter 25. Fundamentals of the Theory of Probability
A. Basic Definitions and Theorems
Sec. 230. Random Events – 591
Sec. 231. Algebra of Events – 593
Sec. 232. The Classical Definition of Probability – 594
Sec. 233. The Statistical Definition of Probability – 597
Sec. 234. The Theorem on Addition of Probabilities – 598
Sec. 235. A Complete Group of Events – 599
Sec. 236. The Theorem on Multiplication of Probabilities – 600
Sec. 237. Bayes’ Formula – 603

B. Repeated Independent Trials
Sec. 238. Elements of Combinatorial Analysis – 604
Sec. 239. The Formula of Total Probability – 605
Sec. 240. The Binomial Law of Distribution of Probabilities – 607
Sec. 241. The Laplace Local Theorem – 608
Sec. 242. The Laplace Integral Theorem – 610
Sec. 243. Poisson’s Theorem – 614

C. Random Variables and Their Numerical Characteristics
Sec. 244. A Random Discrete Variable and Its Distribution Law – 615
Sec. 245. Mathematical Expectation – 617
Sec. 246. Basic Properties of Mathematical Expectation – 618
Sec. 247. Variance – 621
Sec. 248. Continuous Random Variables. Distribution Functions – 626
Sec. 249. Numerical Characteristics of a Continuous Random Variable – 630
Sec. 250. Uniform Distribution – 631
Sec. 251. Normal Distribution – 633
Exercises – 636

Chapter 26. The Concept of Linear Programming
Sec. 252. An n-Dimensional Vector Space – 639
Sec. 253. Sets in n-Dimensional Space – 641
Sec. 254. The Problem of Linear Programming – 645

APPENDICES
A. Most Important Constants – 650
B. List of Formulas (Classified and Explained) – 650
I. Plane Analytic Geometry – 650
II. Differential Calculus—Functions of One Variable – 652
III. Integral Calculus – 654
IV. Complex Numbers, Determinants, and Systems of Simultaneous Equations – 658
V. Elements of Vector Algebra – 660
VI. Solid Analytic Geometry – 661
VII. Differential Calculus—Functions of Several Variables – 662
VIII. Series – 663
IX. Differential Equations – 666
X. Line Integrals – 668
XI. Double and Triple Integrals – 669
XII. Probability Theory – 671

ANSWERS – 674
SUBJECT INDEX – 684

How to Use the “Auto” Value With “clamp()”, by @css:

https://css-tip.com/clamp-auto/

#howtos #css #functions

Focus Rings With Nested “contrast-color()”?, by @davatron5000:

https://daverupert.com/2026/01/nested-contrast-color-focus-rings/

#css #selectors #functions #focus #contrast

Responsive Hexagon Grid Using Modern CSS, by @css (@csstricks):

https://css-tricks.com/responsive-hexagon-grid-using-modern-css/

#css #functions #math #responsivedesign

Oh, the joys of academia! 🤓 Apparently, #arrays are just #functions in disguise! 🎭 Next, they'll tell us that bubble sort is an avant-garde performance art piece! 🎨 Let's just fork this on #GitHub and pretend we understand. 🙄
https://futhark-lang.org/blog/2026-01-16-are-arrays-functions.html #academia #bubble_sort #humor #HackerNews #ngated

Are Arrays Functions?

https://futhark-lang.org/blog/2026-01-16-are-arrays-functions.html

#HackerNews #Arrays #Functions #Programming #Language #Futhark #HackerNews

Hype for the Future 9B: Verfunctions in Trigonometry

https://novatopflex.wordpress.com/2025/11/09/hype-for-the-future-9b-verfunctions-in-trigonometry/

#Inverse #functions in #trigonometry are included within the following image, using the #circle as the unit of measurement. #Mathematics also includes functions specifically about identifying the angles. All measurements are in #radians for each included graph.

25 New and Rad Features of CSS, by @argyleink (@cascadiajs.com):

https://www.youtube.com/watch?v=QW6GECIzvsw

#videos #css #transitions #animations #cascade #selectors #functions #colors #scrolling

Isomorphic JS/TS Functions Orchestrator

https://github.com/damianofalcioni/js-functions-orchestrator

#HackerNews #Isomorphic #JS/TS #Functions #Orchestrator #open-source #JavaScript #TypeScript #functions

UIs Are Not Pure Functions of the Model – React.js and Cocoa Side by Side (2018)

https://blog.metaobject.com/2018/12/uis-are-not-pure-functions-of-model.html

#HackerNews #UIs #Are #Not #Pure #Functions #of #the #Model #React.js #Cocoa #Development #WebDesign

Making Context-Aware Components: How CSS “inherit()” Could Simplify Design Systems, by @sturobson:

https://www.alwaystwisted.com/articles/making-context-aware-components

#components #css #functions #customproperties

Making Context-Aware Components: How CSS “inherit()” Could Simplify Design Systems, by @sturobson:

https://www.alwaystwisted.com/articles/making-context-aware-components

#components #css #functions #customproperties

Making Context-Aware Components: How CSS “inherit()” Could Simplify Design Systems, by @sturobson:

https://www.alwaystwisted.com/articles/making-context-aware-components

#components #css #functions #customproperties

Making Context-Aware Components: How CSS “inherit()” Could Simplify Design Systems, by @sturobson:

https://www.alwaystwisted.com/articles/making-context-aware-components

#components #css #functions #customproperties

Making Context-Aware Components: How CSS “inherit()” Could Simplify Design Systems, by @sturobson:

https://www.alwaystwisted.com/articles/making-context-aware-components

#components #css #functions #customproperties

Styling Siblings With CSS Has Never Been Easier: Experimenting With “sibling-count” and “sibling-index”, by @utilitybend:

https://utilitybend.com/blog/styling-siblings-with-CSS-has-never-been-easier.-Experimenting-with-sibling-count-and-sibling-index/

#css #selectors #functions

One List to Rule Them All, by @argyleink:

https://nerdy.dev/cascading-secret-sauce

#css #selectors #functions #units #learning #linklists

The Fourier transform:
#fouriertransform #harmonicanalysis #functions #mathematics #scienceandtechnology
🌀

https://www.quantamagazine.org/what-is-the-fourier-transform-20250903/

Learning Web Development: Numbers, Variables, Functions in JavaScript, by @rauschma:

https://2ality.com/2025/08/javascript-numbers-variables-functions.html

#javascript #variables #functions

"I Stopped #WastingTime in #Excel When I Learned These 3 #Functions"

https://www.makeuseof.com/excel-functions-time-saver/

"I Stopped #WastingTime in #Excel When I Learned These 3 #Functions"

https://www.makeuseof.com/excel-functions-time-saver/

"I Stopped #WastingTime in #Excel When I Learned These 3 #Functions"

https://www.makeuseof.com/excel-functions-time-saver/

"I Stopped #WastingTime in #Excel When I Learned These 3 #Functions"

https://www.makeuseof.com/excel-functions-time-saver/

"I Stopped #WastingTime in #Excel When I Learned These 3 #Functions"

https://www.makeuseof.com/excel-functions-time-saver/

Unconditional Love for Conditional CSS, by @geoff:

https://geoffgraham.me/unconditional-love-for-conditional-css/

#css #functions #conditionals #mixins #containerqueries #transitions

In today's episode of "Math #Mystifies #the #Masses," we dive into the riveting world of #probability #density #functions and #interpolation factors—because apparently, nothing screams excitement like calculating how an "entropy bulge" curves upward. 📈🤯 Spoiler alert: It's concave! Stay tuned for more edge-of-your-seat #algebraic #adventures. 🙄
https://cgad.ski/blog/entropy-of-a-mixture.html #Math #Factors #Entropy #Bulge #HackerNews #ngated

#Development #Guides
CSS color functions · What they are and how to use them https://ilo.im/164v9a

_____
#ModernCSS #Functions #Colors #ColorSpace #sRGB #CIELAB #OkLab #WebDev #Frontend #CSS

Move Modal in on a… “shape()”, by @chriscoyier (@frontendmasters.com):

https://frontendmasters.com/blog/move-modal-in-on-a-shape/

#modals #functions #css

Integrals of inverse functions!

Proof without words (see image; credit: Jonathan Steinbuch, CC BY-SA 3.0, via Wikimedia Commons)...

For any montonic and invertible function \(f(x)\) in the interval \([a,b]\):
\[\displaystyle\int_a^bf(x)~ \mathrm dx+\int_{f(a)=c}^{f(b)=d}f^{-1}(x)~\mathrm dx=b\cdot f(b)-a\cdot f(a)=bd-ac\]

If \(F\) is an antiderivative of \(f\), then the antiderivatives of \(f^{-1}\) are:
\[\boxed{\displaystyle\int f^{-1}(y)~\mathrm dy=yf^{-1}(y)-F\circ f^{-1}(y)+C}\]
where \(C\) is an arbitrary constant (of integration), and \(\circ\) is the composition operator (function composition).

For example:
\[\begin{align*}\displaystyle\int \sin^{-1}(y) \, \mathrm dy &= y\sin^{-1}(y) - (-\cos(\sin^{-1}(y)))+C\\ &=y\sin^{-1}(y)+\sqrt{1-y^2}+C\end{align*}\]

\[\displaystyle\int \ln(y) \, dy = y\ln(y)-\exp(\ln(y)) + C= y\ln(y)-y + C.\]

#Function #InverseFunction #InverseFunctions #Functions #Integral #Integrals #Antiderivative #Integration #Calculus #FunctionComposition #CompositeFunction)

Geometrically understanding calculus of inverse functions (2023)

https://tobylam.xyz/2023/11/27/inverse-functions-legendre-part-1

#HackerNews #Geometrically #understanding #calculus #of #inverse #functions #inverse #functions #calculus #mathematics #geometry

Equipping #smart #textiles with intelligent #functions: Electrically #conductive prints made from elastic #inks are a cost-effective alternative to conductive yarns. The #DITF are working on suitable ink formulations.

https://nachrichten.idw-online.de/2025/04/07/elastic-inks-for-textile-integrated-electronics

The Problem With Indirections, by @danrot:

https://archive.fo/w7Z9s

#programming #variables #functions #presentationalcss #statemanagement

The Problem With Indirections, by @danrot:

https://archive.fo/w7Z9s

#programming #variables #functions #presentationalcss #statemanagement

The Problem With Indirections, by @danrot:

https://archive.fo/w7Z9s

#programming #variables #functions #presentationalcss #statemanagement

The Problem With Indirections, by @danrot:

https://archive.fo/w7Z9s

#programming #variables #functions #presentationalcss #statemanagement

The Problem With Indirections, by @danrot:

https://archive.fo/w7Z9s

#programming #variables #functions #presentationalcss #statemanagement

How to Use the declare Command in Bash Scripts #declare #Bashscripting #Shellscript #Bash #Linux #Linuxcommands #Linuxhowto #Variables #Functions
https://ostechnix.com/bash-declare-command-usage/

https://techcommunity.microsoft.com/blog/azuredevcommunityblog/using-secretless-azure-functions-from-within-aks/3248143 - use #Azure #Identity in #Keda #Functions in #AKS. Nice post https://www.linkedin.com/in/stephane-eyskens.

https://stackoverflow.com/questions/79259870/azure-functions-in-a-container-0-functions-found - apparently #Azure #Functions only run in #containers on the Premium or better plan, not on the regular consumption plan. Bummer because Premium specifically doesn't scale to 0. ... Hello #Keda.

[Перевод] Практический подход к EF Core с использованием скалярных функций

При создании приложения некоторые логические операции могут быть реализованы на стороне базы данных с использованием скалярных функций. В SQL скалярная функция — это тип функции, который работает с одним значением или небольшим количеством входных значений и всегда возвращает одно значение в качестве результата. Эти функции представляют собой переиспользуемые блоки кода, которые выполняют вычисления или манипуляции с данными.

https://habr.com/ru/articles/854106/

#net_core #c# #tsql #entityframeworkcore #functions