Can somebody tell me what this notation means?

Hi, everyone! I am reading through a textbook which integrates the use of MATLAB and I don't quite understand what this notation means.

K(lm, lm) = K(lm, lm) + k

Any help would be appreciated! Thank you!

Answer 1

[Mouhamed Niasse]

Hello,

You're adding 'k' to the value initially stored at the location row 'lm' column 'lm' in the matrix K.

For example,

>> K=ones(3,3)

K =

     1     1     1
     1     1     1
     1     1     1

>> k=5

k =

     5

>> K(2,2)=K(2,2)+k

K =

     1     1     1
     1     6     1
     1     1     1

[Ashmika Gupta]

Thank you!