Replace negative values in a matrix with a modified version of themselves.

I am writing a code where I have an array of a mix of positive and negative numbers. If the value of a number is negative I want to add 18 to that number.

for example A = [1 3 5 7 9 -2 -4 -1 6 5 4 3 ]

then magic

then A = [1 3 5 7 9 16 14 17 6 5 4 3]

thank you!

Answer 1

[Manikanta Aditya]

Hi Jacob,

As per my understanding, you want to add '18' to a negative number in the mix of positive and negative numbers.

Here is how you can do it:

A = [1 3 5 7 9 -2 -4 -1 6 5 4 3]
A(A<0)=A(A<0)+18 % add 18 to negative numbers
disp(A); % display the updated array

I hope this resolves your issue.