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RE: [avr-libc-dev] [bug #26809] Some common math constants missing inmat
From: |
Stu Bell |
Subject: |
RE: [avr-libc-dev] [bug #26809] Some common math constants missing inmath.h |
Date: |
Mon, 15 Jun 2009 09:30:33 -0600 |
> #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
While I have no problem with the constant, shouldn't the symbol name be
M_1_SQRT2? That would follow the naming set up by M_1_PI and M_2_PI and
. . .
Best regards,
Stu Bell
DataPlay (DPHI, Inc.)
> #define M_E 2.7182818284590452354 /* e */
> #define M_LOG2E 1.4426950408889634074 /* log 2e */
> #define M_LOG10E 0.43429448190325182765 /* log 10e */
> #define M_LN2 0.69314718055994530942 /* log e2 */
> #define M_LN10 2.30258509299404568402 /* log e10 */
> #define M_PI 3.14159265358979323846 /* pi */
> #define M_PI_2 1.57079632679489661923 /* pi/2 */
> #define M_PI_4 0.78539816339744830962 /* pi/4 */
> #define M_1_PI 0.31830988618379067154 /* 1/pi */
> #define M_2_PI 0.63661977236758134308 /* 2/pi */
> #define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
> #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */