1 "Python/pyhash.c" # 1 "/XXX//" # 1 "<built-in>" # 1

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Note the order of the arguments passed to this function. The atan2() function calculates the principal value of the arc tangent of y/x, using the signs of the two arguments to determine the quadrant of the result. Return Value. On success, these functions return the principal value of the arc tangent of y/x in radians; the return value is in the range [-pi, pi]..

Standards / Extensions, C or C++, Dependencies. ISO C POSIX.1. XPG4 XPG4.2. ISO/ANSI C++. both Math.h math function in Objective-C, Programmer Sought, the best programmer technical posts sharing site. extern float atan2f(float, float);. extern double The pragma is properly passed on by 'cpp' & 'c++' and ignored by * 'ccom'. #ifdef __MATH_HAS_NO_SIDE_EFFECTS #pragma no side effects (atan2f) #endif 1 "clogf.c" # 1 "complex.h" 1 extern double atan2 (double, double); extern double __complex__ b ); extern float atan2f (float, float); extern float "C" { #endif #ifndef __dj_ENFORCE_ANSI_FREESTANDING extern double float asinf(float); extern float atanf(float); extern float atan2f(float, float); extern return atan2f(x, y);.

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C++98. C++11. double atan2 (double y, double x); double atan2 (double y , double x); float atan2f (float y , float x); long double atan2l (long double y, long double x); double atan2 (double y , double x); float atan2 (float y , float x); long double atan2 (long double y, long double x); Two other functions atan2f() and atan2l() are also present in C to specifically work with float and long double respectively. The atan2() function is defined in header file.

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double atan2(double y, double x);, √, √, √, √. float atan2f(float y, float x);, √. long double atan2l(long double y, long API documentation for the Rust `atan2f` fn in crate `std`. std::sys::unix::cmath:: atan2f ⎘ [−][src].

extern double The pragma is properly passed on by 'cpp' & 'c++' and ignored by * 'ccom'. #ifdef __MATH_HAS_NO_SIDE_EFFECTS #pragma no side effects (atan2f) #endif 1 "clogf.c" # 1 "complex.h" 1 extern double atan2 (double, double); extern double __complex__ b ); extern float atan2f (float, float); extern float "C" { #endif #ifndef __dj_ENFORCE_ANSI_FREESTANDING extern double float asinf(float); extern float atanf(float); extern float atan2f(float, float); extern return atan2f(x, y);. #else. return (float)SDL_atan2((double)x, (double)y);.
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Sean Kelly. License. Distributed under the Boost 2016년 10월 25일 http://zzoyu.tistory.com/73 좌표 관련 내용이 잘 설명되어 있음. See System Calls in The Red Hat newlib C Library , for a discussion and for 1.8 atan2 , atan2f —arc tangent of y/x atan2 is ANSI C. atan2f is an extension.

return (float)SDL_atan2((double)x, (double)y);. #endif. } double. SDL_acos(double val).
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Usage: nm -g ../../lib/libc.a check */ #include <stdio.h> #include

atan, atanf, atanl. 4) Type-generic macro: If the argument has type long double, atanl is called. Otherwise, if the argument has integer type or the type double, atan is called. Otherwise, atanf is called. If the argument is complex, then the macro invokes the corresponding complex function ( catanf, catan, catanl ). The atan2 () functions return a value in the range -pi to pi radians.