Why can't I put two equations in one function file?

function a,b=myfunction(x)
a= @(x) 5-5*exp((1/3)*x) + (16- x^2)^(1/2)
b= @(x) (-5/3)*exp((1/3)*x) - (16- x^2)^(-1/2)

I basically want this function to give me f(x) value (equation listed next to a), and I want it to give me the f'(x) value (equation listed next to b).

Why is it that I can't have my input value go into two separate equations and come out as two outputs?

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I know that I can create a function file f(x) with equation '5x^2 + 10' and then create its derivative function file:

function result= fd(x)
f(x)
result=10x;

and it will print out both values that I want (f(x) and f'(x)). But, do I really have to make two files for these two equations instead of just grouping them in one file?

Answer 1

[the cyclist]

It's just a simple syntax error. Try

function [a,b]=myfunction(x)

Note the square brackets around the outputs. You will get two outputs from this function.

[Rachel Dawn]

I did that and took off the "@(x)" and it finally worked. Thank you!!

[the cyclist]

Happy to help. The best form of thanks is to upvote and/or accept an answer, which rewards the contributor, and can guide future users to helpful responses.

[PRED LIU]

If a,b are matrix or ,how to do ??

IF a is matrix b is var ,how to do??

[the cyclist]

It's still the same syntax. You will get outputs that are scalars or matrices.