Matlab - how to define a variable

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how to define a variable

plindaq

2005-11-30, 4:02 am

my m file:

function y=c3ffun(x)
y=2/sqrt(pi)*exp(-x.^2);
area=quad('c3ffun',0,1.5)

wrong information:
??? Input argument 'x' is undefined.

Error in ==> D:\MATLAB6p5\test\Main.m
On line 2 ==> y=2/sqrt(pi)*exp(-x.^2);

what can I do for it?
thanks a lot

kinor

2005-11-30, 4:02 am

looks like you call your function without an argument, then x is not defined..
this can happen if you try to test your function with the run button or f5

put as second line:

if ~nargin, error('no argument provided'); end

to test this

hth

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