avr-libc
2.0.0
Standard C library for AVR-GCC
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#define | M_E 2.7182818284590452354 |
This header file declares basic mathematics constants and functions.
libm.a
. See also the related FAQ entry.errno
variable. Therefore the majority of them are declared with const attribute, for better optimization by GCC. #define M_E 2.7182818284590452354 |
The constant e.