calculate the derivative of the function log(sin(2x)), simplify the result

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Yaser Arafat
Yaser Arafat le 13 Déc 2016
Commenté : Jan le 13 Déc 2016
pretty(simplify(diff('log(sin(2*x))','x'))) Error using diff Difference order N must be a positive integer scalar.
  1 commentaire
Jan
Jan le 13 Déc 2016
@Yaser: In your example the input for diff() is a string, which is treated like a numerical vector containing ASCII codes. Most likely you want a symbolic expression, so see KSSV's answer.

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KSSV
KSSV le 13 Déc 2016
syms x
f = log(sin(2*x));
pretty(simplify(diff(f)))

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