How to solve ZERO DIVIDE issue in MT4?

How can I approach the inverse for currency prices and have them stored in an array?

For example: EURUSD = 1.1050 means USD/EUR = .9049

on a simple calculator we simply take 1/1.1050 which doesn't seem to work so well in arrays

Lets say

P1 = 1/iClose(NULL,0,n+1);
Buffer1 = P1;

with the code above I get a zero divide problem,
however if I just use 1/iClose(NULL,0,1); instead without the adding to the array value, it computes the proper calculation.

how can I get these to work for stored values?

Before doing your calculation, check if the divisor is equal to 0.

Thanks I did that for ALL the calcs within the loop and it worked, it was picking up 0 data from nonexistent bars in the past. Works fine. Thank you.

I used

if (VAR > 0) VAR = 1/VAR;