Is this expression true?

D(i, j)=45.6*10^(-32) If not true,what modification must I do?

[Azzi Abdelmalek]

Have you any error message?

[Azzi Abdelmalek]

You can check in Matlab windows command

   D(1,1)=45.6*10^(-32)

[Mary Jon]

yes, this error? ??? Subscript indices must either be real positive integers or logicals.

                        E(i-1, j)= 8.854e-12;

[Simon]

You know that "i-1" is 0 if i is 1. This is not allowed in matlab.

[Mary Jon]

loop starting from 2, therefor 2-1=1. allowed in matlab

Answer 1

[Simon]

You write exponential notation in matlab as

D(i,j) = 45.6e-32

[Mary Jon]

ok, and what about this? D(i-1,j) = 45.6e-32, or

D(i-1,j-1) = 45.6e-32,or

D(i,j-1) = 45.6e-32????

[Simon]

What do you want to set? With

D(i,j)

you index a matrix entry. You should describe your whole problem.

[Mary Jon]

I want give these variables E(i, j),E(i+1, j),E(i-1, j),E(i, j+1),E(i, j-1) values as shown in pdf attachment