Attempted to access Cpins(0.03); index must be a positive integer or logical

I am doing a matrix based f equations and I cannot all run the program because This error is showing all the time:

Attempted to access Cpins(0.03); index must be a positive integer or logical.

This is the part of matrix that the error is indicating:

AMAT=[-hout-hskyN-Kb/Lbriw ,-(Pbrick*Cpbrick*(Lbriw/2)*(1/deltat)) ,0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;%A1

Kb/Lbriw ,Kins/Linsw ,-(Pins*Cpins*(Linsw/2)*(1/deltat))-(Pbrick*Cpbrick*(Lbriw/2)*(1/deltat)) ,0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;%A2

0 Kins/Linsw ,Kgyp/Lgypw-(Pins*Cpins(Linsw/2)*(1/deltat))-(Pgyps*Cpgyps*(Lgypw/2)*(1/deltat)) ,0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;%A3

0 0 Kgyps/Lgypw ,hin-(Pgyps*Cpgyps(Lgypw/2)*(1/deltat)) ,0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;%A4

Cpins=1.30 (is not a negative number or an array or vector, just a value)

I been trying to change he value but nothing works.

Any help?? Thanks so much !!

Answer 1

[the cyclist]

In the row labeled "A3", you have

Cpins(Linsw/2)

where I expect you intended

Cpins*(Linsw/2)

and it looks like you make the same type of error in the next line, where

Cpgyps(Lgypw/2)

is presumably intended to be

Cpgyps*(Lgypw/2)

[Margarita]

You are totally correct !! Thank you so much