drygdryg/calc
1
0
Fork 0
mirror of https://github.com/lcn2/calc.git synced 2025-08-16 01:03:29 +03:00
Code Issues Packages Projects Releases Wiki Activity

add log2(x [,eps]) builtin function

Browse Source 
Added log2(x [,eps]) builtin function.  When x is an integer
power of 2, log2(x) will return an integer, otherwise it will
return the equivalent of ln(x)/ln(2).
This commit is contained in:
Landon Curt Noll
2023-08-27 19:02:37 -07:00
parent 56c568060a
commit 4e5fcc8812
15 changed files with 429 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
qmath.c
View File

@@ -1,7 +1,7 @@
/*
* qmath - extended precision rational arithmetic primitive routines
*
* Copyright (C) 1999-2007,2014,2021-2023 David I. Bell and Ernest Bowen
* Copyright (C) 1999-2007,2014,2021-2023 David I. Bell, Landon Curt Noll and Ernest Bowen
*
* Primary author: David I. Bell
*
@@ -41,7 +41,7 @@ NUMBER _qtwo_ = { { _twoval_, 1, 0 }, { _oneval_, 1, 0 }, 1, NULL };
NUMBER _qten_ = { { _tenval_, 1, 0 }, { _oneval_, 1, 0 }, 1, NULL };
NUMBER _qnegone_ = { { _oneval_, 1, 1 }, { _oneval_, 1, 0 }, 1, NULL };
NUMBER _qonehalf_ = { { _oneval_, 1, 0 }, { _twoval_, 1, 0 }, 1, NULL };
NUMBER _qneghalf_ = { { _oneval_, 1, 1 }, { _twoval_, 1, 0 }, 1, NULL };
NUMBER _qneghalf_ = { { _oneval_, 1, 1 }, { _twoval_, 1, 0 }, 1, NULL };
NUMBER _qonesqbase_ = { { _oneval_, 1, 0 }, { _sqbaseval_, 2, 0 }, 1, NULL };
NUMBER * initnumbs[] = {&_qzero_, &_qone_, &_qtwo_,