Solve for exponent variable

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Mohamed Mahmoud
Mohamed Mahmoud 2020-10-24
评论： Mohamed Mahmoud 2020-10-24
syms x y z a b c Q N P S
Q= x^a
S = solve(Q==(x^4),a)
S-4
% why the answer is not zero and how to make it?

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-10-24
You need to specify the assumption that .
syms x y z a b c Q N P S
assume(x, 'positive')
Q = x^a
S = simplify(solve(Q==(x^4),a))
S-4
  2 个评论
Mohamed Mahmoud
Mohamed Mahmoud 2020-10-24
It worked for defined numbers but not the variables
assume(T,'positive')
S=T^2*T^a
(solve(S==(T^1),a))

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