Conversion to char from logical is not possible.

Hi, 

I am trying to solve the following integral with MATLAB_R2019b.

I= @(x)((x.^(3).*exp(-x))/(x.^(3)+D(i))), ['ArrayValued';true];

L = integral(I,0,Inf);

but I get the following error:

I =

function_handle with value:

@(x)((x.^(3).*exp(-x))/(x.^(3)+D(i)))

Error using vertcat

The following error occurred converting from logical to char:

Conversion to char from logical is not possible.

Error in untitled3 (line 6)

I= @(x)((x.^(3).*exp(-x))/(x.^(3)+D(i))), ['ArrayValued';true];

Can someone help? Thank you.

[Rik]

It looks like ['ArrayValued';true] is executed separately from the rest. It is also unclear to me what this code is supposed to be doing.

[Ludovico Iannizzotto]

Suppose that D(i)=7.

I am trying to solve the integral from 0-inf. However, this error arises. Do you have any suggestions on how to use ['ArrayValued';true] ??

Thanks

Answer 1

[Rik]

You need to pass the option as a parameter to the integral function instead of defining it earlier.

I= @(x)((x.^(3).*exp(-x))/(x.^(3)+D(i)));
L = integral(I,0,Inf, 'ArrayValued';true);

[Ludovico Iannizzotto]

Thank you that was very helpful