How to edit a Program in Matlab??

[cokibolong]

Can you send me your code?
coz i can't imagine what do u wanna make

 

[blooz]

DEar Devilwar,

Thanks for your kind help.
One program that i tried y'day by myself is to plot xdot=sinx, with xdot along y axis and sinx along x axis but i'm getting error which is perhaps bcoz of error in logic hence want ur help in the same.

clc;
clear all;
function xdot = func(t,sinx);
xdot = sinx;
I saved it as func.m
in command prompt i typed

>>tspan = [0,2];x0=0;
>>[t,sinx]=ode23('func',tspan,x0);
here i'm getting error
Error: File:func.m Line:4 Column:1
Function definitions are not permitted at the prompt or in scripts.
Error in ==> odearguments at 81
if(nargin(ode)==2)
Error in ==>ode23 at 172
[neq,tspan,ntspan.....

One more thing i need to ask you is if it is necessary to have the function name and m file name to be the same as that is what i have seen in Rudra Pratap's book to be kept as same.

Regards,
Rahul

function xdot = func(t,sinx);
 xdot = sinx;

changed to

function xdot = func(t,x);
xdot = sin(x);

 

[rahul.6sept]

thanks blooz,

i'll try the rectification as suggested.

Regards,
rc

 

[rahul.6sept]

hi blooz,

the function xdot = func(t,x) line giving error with a red line below function and x.

i really don't see any syntax error in it, plz see if there is any in it.


regards,
rc

 

[blooz]

could you post the Differential Equation ,

it will be easier to solve if you can state the equation

 

[rahul.6sept]

its xdot = sinx i.e, dx/dt = sinx

regards,
rc