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Fast divisions in C++

General and Gameplay Programming Programming

Started by Seriema March 18, 2003 10:37 AM

1 comment, last by Seriema 21 years, 1 month ago

Seriema

634

Author

March 18, 2003 10:37 AM

Hi! Wondering, how do I make fast divisions in C++ using float''s?

thanx "No lies of sugar can sweeten the sournes of reality" }+TITANIUM+{ A.K.A. DXnewbie[onMIRC]

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Anonymous

March 18, 2003 10:52 AM

http://www.stereopsis.com/2div.html

LilBudyWizer

491

March 18, 2003 10:55 AM

Load the exponent part and shift it? More practical is if you are repeatedly doing divisions by the same number then store the reciprocal and multiply instead. A divide and multiply takes longer than a divide, but a divide and two multiplies is faster than two divides. So you have to be dividing by the same number at least twice.

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