Unable to use a value of type function_handle as an index.

hi all,

I am trying to perform double integration using following syntax:

Gxh=@(xpp,zpp) (xpp+zpp)

GXH=integral2(Gxh,aa,bb,cc,dd);

but i am getting following error message:

"Unable to use a value of type function_handle as an index."

I have already tried to change the names of Gxh and GXH but to no avail. Please help me resolve the issue!

[Just Manuel]

When I assign some integers for aa, bb, cc and dd, your code works for me.

What is your full error message? What are aa, bb, cc and dd in your code?

[Waseem Akhtar]

full error message is: Unable to use a value of type function_handle as an index.

The values of limits aa,bb,cc and dd are not integers, rather these +ve/-ve decimal values.

Also the expression (xpp+zpp) is simplified here, actual expresssion in my code is very long

Answer 1

[Walter Roberson]

You have accidentally assigned a value to a variable named integral2

[Waseem Akhtar]

That was it! Thank you

It's working fine now.