How to ignore new values?

for example, if I have:

>> p1=5;p2=3;

and I want to calculate:

>> p1=p1-p2;p2=p1+p2

p2 =

     5

because matlab has already calculated the new value for p1, but I want it to ignore new values until the end of the second line, so that p2=8

Answer 1

[sixwwwwww]

Dear Tristan, you can do it as follows:

p1 = 5; % initialize p1
a = p1; % store p1 value in new variable to use later
p2 = 3; % initialize p2
p1 = p1 - p2; % overwrite value of p1
p2 = a + p2; % use old value of p1 to overwrite p2

I hope it helps. Good luck!