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How can I make function value symbolic?

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Muhendisleksi
Muhendisleksi 2017-10-29
关闭： MATLAB Answer Bot 2021-8-20
function t = turev(x,y)
.
.
.
end
x = x^2+y^2, y = 1
How can I make the function "x ^ 2 + y ^ 2" symbolic when I enter the values?

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回答（2 个）

John D'Errico
John D'Errico 2017-10-29
If either of x or y are already symbolic, then any computations done on them will also be symbolic.
You can create a symbolic constant or variable using sym or syms, depending on exactly how you want to do it.
help sym
Walter Roberson
Walter Roberson 2017-10-29
See https://www.mathworks.com/matlabcentral/answers/363947-warning-support-of-strings-that-are-not-valid-variable-names-or-define-a-number-will-be-removed-in
Please do not ask the same question multiple times. The hamsters are paddling as fast as they can.

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