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#sagemaths — Public Fediverse posts

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  1. uxor :verified: @[email protected] ·

    @quim_roe Yes #sagemaths use most of the time #maxima for symbolic calculation and we lose some of the power of maxima by using sage, another example :

    mastodon.xyz/@uxor/11053578721

    #sagemaths #maxima
  2. uxor :verified: @[email protected] ·

    #graphs theory stuff with #SageMaths
    ➡️ list of the neighbors of vertex x in the un-directed graph G : G.neighbors(G,x) 😀

    ➡️ predecessors and successors of x in the directed graph G : 🤔 ... 😭 WTF

    #graphs #sagemaths
  3. uxor :verified: @[email protected] ·

    Starting some #graphs theory stuff with #SageMaths
    ➡️ Creating an empty un-directed graph : G=Graph() 😀

    ➡️ Creating an empty directed graph : 🤔 ... G=digraphs.Circular(0) 😭 WTF

    WHY ?

    #graphs #sagemaths
  4. uxor :verified: @[email protected] ·

    I've found a lot of situations where #maxima and #sagemaths fail to compute indefinite limits
    of functions involving trigonometric expressions as x tends to infinity.

    f:(4*x^3+2*x^2*sin(x)+1)/(x+1)^2;
    limit(f-x*4,x,inf); # should be ind

    A work-around in Maxima is to force a ratsimp before the limit, but this doesn't work with SageMaths ...🤦‍♂️

    I made a #bugreport but they are a lot of similar cases already reported :

    sourceforge.net/p/maxima/bugs/

    #mathematics #mathématiques #wxmaxima #Sage

    #maxima #sagemaths #bugreport #mathematics #mathematiques #wxmaxima