Re: Program problem

[Thomas D. Dean]

On 2020-04-29 15:41, Thomas D. Dean wrote:
> On 2020-04-29 11:35, 이태훈 wrote:
> > Hi all
> > Every time I run this code the Octave program disappear.
> > I am using the Octave-4.4.1. app.
> > How can I solve the problem??
> >
> > function IbX_return_value = IbX(a,b,X,r,I0)
> > I0=1;
> > a=3;
> > b=3;
> > X=9.8;
> > r=0.098;
> >
> > IbthetaX = @(theta) I0.*exp( -a.*X.*( 
> > b.*cos(theta).+sqrt(r.^2.-b.^2.*sin(theta).^2) ) );
> > q = integral("IbX", 0, pi);
> > IbX_return_value = (1./pi).*q;
> >
> > end
>
> When you asked this question under the subject "code question", Bret 
> Green suggested that you read a basic tutorial on programming.  Please 
> do that, then, maybe we can help you.  With your not understanding basic 
> programming, we can not help.
>
> The code you posted is not correct octave code, and should not run.  You 
> started a function definition but, never ended it.

Look at
https://octave.org/doc/v5.2.0/Simple-Examples.html#Simple-Examples
And, the following pages.

Tom Dean