generalize a function according to input

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Ozge Moral
Ozge Moral 2016-8-15
评论： Ozge Moral 2016-8-16
Hi, i need your suggestion about generalize a code for each variable. For example, i have a code, but it is special for x. I have a function like f(x)=x.^2-3*x+5; and this code generate f(x) according to x. I want to generalize code for x,y,z,... and more variable, for example if my function is f(x,y)= x.^2-2*y+6, i want code to work for x and y variable.
So i need some beginning suggestions, i'm in searching process. Thank you.
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Ozge Moral
Ozge Moral 2016-8-15
编辑：Ozge Moral 2016-8-15
it will include exponentials, sinusoids(sin(5x+6).^2) and it is always mathematical function. i have already a code for doing necessary calculation. but i want to apply this x,y,z,... may be there is a practical way to control these.

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hcai
hcai 2016-8-16
编辑：hcai 2016-8-16
You can try using varargin, which allows functions to take a variable number of inputs.
function result = f(varargin)
Inside your function, use nargin or the length of the varargin cell array to determine the number of function inputs. From there, use if statements to specify what do to for each case.
if nargin == 1
x = varargin{1};
x.^2-3*x+5;
elseif nargin == 2
...
Examples can be found here .

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