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How can I get a better simplification of my results

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El Vapor
El Vapor 2020-6-24
评论： Walter Roberson 2023-12-23
I have been working on a program that gives me some results as a function of "k" and "m" (symbolic variables). However, this result is shown as this:
When, it is much simpler, the solution is just this:
How can I manage to make Matlab give me the result in a more digestible way? (I've already tried "simplify")
Thank you very much guys

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采纳的回答

Takumi
Takumi 2020-6-24
Ran in:
syms k m
s = [-(3*10^(1/2)*(k*m)^(1/2))/(10*m);
(3*10^(1/2)*(k*m)^(1/2))/(10*m)];
assume([m,k],'positive');
s_sign = sign(s); % signum
assume([m,k],'clear') % reset assume
S = s.^2;
S = simplify(S);
s = s_sign.*sqrt(S)
s = 
  2 个评论
Ahmet Anil
Ahmet Anil 2023-12-23
Whats your purpose at that lists?
assume([m,k],'positive');
s_sign = sign(s); % signum
assume([m,k],'clear')
Walter Roberson
Walter Roberson 2023-12-23
Ran in:
syms k m
s = [-(3*10^(1/2)*(k*m)^(1/2))/(10*m);
(3*10^(1/2)*(k*m)^(1/2))/(10*m)];
s_sign = sign(s); % signum
S = s.^2;
S = simplify(S);
s = s_sign.*sqrt(S)
s = 
So the assume() is there to have the sign() vanish

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