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  1. Hotweatherisbad @Hotweatherisbad ·

    Enjoyed 's . Makes me feel really inadequate in some ways - really brilliant guy.

    I need to buy some more books now! I'm thinking though next should be to work through some sections of the Structure and Interpretations of Computer Programming

    #polya #howtosolveit #wizardbook #sicp #teachyourselfcs
  2. Hotweatherisbad @Hotweatherisbad ·

    I'm working through the 'how to solve it' book and i'm a bit lost about solving this problem - I can do algebra alright but transforming x^4-13x^2+36=0 to (2x^2)^2-2(2x^2)13+144=0 doesn't seem to follow a simple rule of algebra. It's not like simply replacing x with x^2. Anyone help with what I'm missing?

    #math #maths #teahyourselfcs #algebra #howtosolveit