Multiply or divide numbers larger than 38 digits in objective c

Question

I am writing an app that , among other things will be able to multiply or divide very large numbers by number 19 - Those large numbers could possibly span hundreds of digits . Do you know of a library I could use for that? Thanks in advance. I have tried using NSDecimalNumber but its not able to produce results past 38 digits.

might help http://stackoverflow.com/questions/1226949/biginteger-on-objective-c — Mehul Rathod, Jul 27 '13 at 00:02

score 2 · Accepted Answer · answered Jul 27 '13 at 00:03

2

If licensing is not an issue GMP is good.

answered Jul 27 '13 at 00:03

LogicG8

1,767
16
26

How do I multiply lets say 102343345345345453453544350 with 0.025 using GMP. I am able to divide and multiply whole numbers but having trouble with multiplying fractional points. – real 19 Jul 27 '13 at 10:02
You can A) Use MPFR for floating point http://www.mpfr.org/. MPFR uses GMP so it will not have been a waste to have it set up. B) Use fractions – LogicG8 Jul 27 '13 at 11:58

Multiply or divide numbers larger than 38 digits in objective c

1 Answers1