Breaking a function into components?
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I have a function containing several variables which I am looking to pull from it the individual variables and their values. i.e. function =5x+3y+8z. I need to be able to extract from this, say just the x variable and its value, answer=5x. Thanks in advance
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Accepted Answer
Star Strider
on 23 May 2014
You probably need to use the Symbolic Math Toolbox, especially if you have only one such equation. (The Symbolic Math Toolbox doesn’t work efficiently for iterative calculations.)
syms x y z
f = 5*x+3*y+8*z
% Set y=0 and z=0 (then simplify if necessary):
f1 = subs(f, {y,z},{0,0})
yields:
f1 =
5*x
More Answers (1)
George Papazafeiropoulos
on 23 May 2014
Make a function named myfunc as follows:
%----------------------
function out=myfunc(a,vec)
out=a.*vec;
end
%----------------------
Then run the following code:
a=[5;3;8];
x=1;
y=2;
z=3;
vec=[x;y;z];
out=myfunc(a,vec)
I hope this is what you want...
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