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c语言三角函数形参类型,c语言函数的形参

C++三角函数

/***

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*math.h - definitions and declarations for math library

*

* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.

*

*Purpose:

* This file contains constant definitions and external subroutine

* declarations for the math subroutine library.

* [ANSI/System V]

*

* [Public]

*

****/

#if _MSC_VER 1000

#pragma once

#endif

#ifndef _INC_MATH

#define _INC_MATH

#if !defined(_WIN32) !defined(_MAC)

#error ERROR: Only Mac or Win32 targets supported!

#endif

#ifdef _MSC_VER

/*

* Currently, all MS C compilers for Win32 platforms default to 8 byte

* alignment.

*/

#pragma pack(push,8)

#endif /* _MSC_VER */

#ifdef __cplusplus

extern "C" {

#endif

#ifndef __assembler /* Protect from assembler */

/* Define _CRTIMP */

#ifndef _CRTIMP

#ifdef _DLL

#define _CRTIMP __declspec(dllimport)

#else /* ndef _DLL */

#define _CRTIMP

#endif /* _DLL */

#endif /* _CRTIMP */

/* Define __cdecl for non-Microsoft compilers */

#if ( !defined(_MSC_VER) !defined(__cdecl) )

#define __cdecl

#endif

/* Define _CRTAPI1 (for compatibility with the NT SDK) */

#ifndef _CRTAPI1

#if _MSC_VER = 800 _M_IX86 = 300

#define _CRTAPI1 __cdecl

#else

#define _CRTAPI1

#endif

#endif

/* Definition of _exception struct - this struct is passed to the matherr

* routine when a floating point exception is detected

*/

#ifndef _EXCEPTION_DEFINED

struct _exception {

int type; /* exception type - see below */

char *name; /* name of function where error occured */

double arg1; /* first argument to function */

double arg2; /* second argument (if any) to function */

double retval; /* value to be returned by function */

} ;

#define _EXCEPTION_DEFINED

#endif

/* Definition of a _complex struct to be used by those who use cabs and

* want type checking on their argument

*/

#ifndef _COMPLEX_DEFINED

struct _complex {

double x,y; /* real and imaginary parts */

} ;

#if !__STDC__ !defined (__cplusplus)

/* Non-ANSI name for compatibility */

#define complex _complex

#endif

#define _COMPLEX_DEFINED

#endif

#endif /* __assembler */

/* Constant definitions for the exception type passed in the _exception struct

*/

#define _DOMAIN 1 /* argument domain error */

#define _SING 2 /* argument singularity */

#define _OVERFLOW 3 /* overflow range error */

#define _UNDERFLOW 4 /* underflow range error */

#define _TLOSS 5 /* total loss of precision */

#define _PLOSS 6 /* partial loss of precision */

#define EDOM 33

#define ERANGE 34

/* Definitions of _HUGE and HUGE_VAL - respectively the XENIX and ANSI names

* for a value returned in case of error by a number of the floating point

* math routines

*/

#ifndef __assembler /* Protect from assembler */

_CRTIMP extern double _HUGE;

#endif /* __assembler */

#define HUGE_VAL _HUGE

/* Function prototypes */

#if !defined(__assembler) /* Protect from assembler */

#if _M_MRX000

_CRTIMP int __cdecl abs(int);

_CRTIMP double __cdecl acos(double);

_CRTIMP double __cdecl asin(double);

_CRTIMP double __cdecl atan(double);

_CRTIMP double __cdecl atan2(double, double);

_CRTIMP double __cdecl cos(double);

_CRTIMP double __cdecl cosh(double);

_CRTIMP double __cdecl exp(double);

_CRTIMP double __cdecl fabs(double);

_CRTIMP double __cdecl fmod(double, double);

_CRTIMP long __cdecl labs(long);

_CRTIMP double __cdecl log(double);

_CRTIMP double __cdecl log10(double);

_CRTIMP double __cdecl pow(double, double);

_CRTIMP double __cdecl sin(double);

_CRTIMP double __cdecl sinh(double);

_CRTIMP double __cdecl tan(double);

_CRTIMP double __cdecl tanh(double);

_CRTIMP double __cdecl sqrt(double);

#else

int __cdecl abs(int);

double __cdecl acos(double);

double __cdecl asin(double);

double __cdecl atan(double);

double __cdecl atan2(double, double);

double __cdecl cos(double);

double __cdecl cosh(double);

double __cdecl exp(double);

double __cdecl fabs(double);

double __cdecl fmod(double, double);

long __cdecl labs(long);

double __cdecl log(double);

double __cdecl log10(double);

double __cdecl pow(double, double);

double __cdecl sin(double);

double __cdecl sinh(double);

double __cdecl tan(double);

double __cdecl tanh(double);

double __cdecl sqrt(double);

#endif

_CRTIMP double __cdecl atof(const char *);

_CRTIMP double __cdecl _cabs(struct _complex);

#if defined(_M_ALPHA)

double __cdecl ceil(double);

double __cdecl floor(double);

#else

_CRTIMP double __cdecl ceil(double);

_CRTIMP double __cdecl floor(double);

#endif

_CRTIMP double __cdecl frexp(double, int *);

_CRTIMP double __cdecl _hypot(double, double);

_CRTIMP double __cdecl _j0(double);

_CRTIMP double __cdecl _j1(double);

_CRTIMP double __cdecl _jn(int, double);

_CRTIMP double __cdecl ldexp(double, int);

int __cdecl _matherr(struct _exception *);

_CRTIMP double __cdecl modf(double, double *);

_CRTIMP double __cdecl _y0(double);

_CRTIMP double __cdecl _y1(double);

_CRTIMP double __cdecl _yn(int, double);

#if defined(_M_MRX000)

/* MIPS fast prototypes for float */

/* ANSI C, 4.5 Mathematics */

/* 4.5.2 Trigonometric functions */

_CRTIMP float __cdecl acosf( float );

_CRTIMP float __cdecl asinf( float );

_CRTIMP float __cdecl atanf( float );

_CRTIMP float __cdecl atan2f( float , float );

_CRTIMP float __cdecl cosf( float );

_CRTIMP float __cdecl sinf( float );

_CRTIMP float __cdecl tanf( float );

/* 4.5.3 Hyperbolic functions */

_CRTIMP float __cdecl coshf( float );

_CRTIMP float __cdecl sinhf( float );

_CRTIMP float __cdecl tanhf( float );

/* 4.5.4 Exponential and logarithmic functions */

_CRTIMP float __cdecl expf( float );

_CRTIMP float __cdecl logf( float );

_CRTIMP float __cdecl log10f( float );

_CRTIMP float __cdecl modff( float , float* );

/* 4.5.5 Power functions */

_CRTIMP float __cdecl powf( float , float );

float __cdecl sqrtf( float );

/* 4.5.6 Nearest integer, absolute value, and remainder functions */

float __cdecl ceilf( float );

float __cdecl fabsf( float );

float __cdecl floorf( float );

_CRTIMP float __cdecl fmodf( float , float );

_CRTIMP float __cdecl hypotf(float, float);

#endif /* _M_MRX000 */

#if defined(_M_ALPHA)

/* ALPHA fast prototypes for float */

/* ANSI C, 4.5 Mathematics */

/* 4.5.2 Trigonometric functions */

float __cdecl acosf( float );

float __cdecl asinf( float );

float __cdecl atanf( float );

float __cdecl atan2f( float , float );

float __cdecl cosf( float );

float __cdecl sinf( float );

float __cdecl tanf( float );

/* 4.5.3 Hyperbolic functions */

float __cdecl coshf( float );

float __cdecl sinhf( float );

float __cdecl tanhf( float );

/* 4.5.4 Exponential and logarithmic functions */

float __cdecl expf( float );

float __cdecl logf( float );

float __cdecl log10f( float );

_CRTIMP float __cdecl modff( float , float* );

/* 4.5.5 Power functions */

float __cdecl powf( float , float );

float __cdecl sqrtf( float );

/* 4.5.6 Nearest integer, absolute value, and remainder functions */

float __cdecl ceilf( float );

float __cdecl fabsf( float );

float __cdecl floorf( float );

float __cdecl fmodf( float , float );

_CRTIMP float __cdecl _hypotf(float, float);

#endif /* _M_ALPHA */

#if !defined(_M_M68K)

/* Macros defining long double functions to be their double counterparts

* (long double is synonymous with double in this implementation).

*/

#ifndef __cplusplus

#define acosl(x) ((long double)acos((double)(x)))

#define asinl(x) ((long double)asin((double)(x)))

#define atanl(x) ((long double)atan((double)(x)))

#define atan2l(x,y) ((long double)atan2((double)(x), (double)(y)))

#define _cabsl _cabs

#define ceill(x) ((long double)ceil((double)(x)))

#define cosl(x) ((long double)cos((double)(x)))

#define coshl(x) ((long double)cosh((double)(x)))

#define expl(x) ((long double)exp((double)(x)))

#define fabsl(x) ((long double)fabs((double)(x)))

#define floorl(x) ((long double)floor((double)(x)))

#define fmodl(x,y) ((long double)fmod((double)(x), (double)(y)))

#define frexpl(x,y) ((long double)frexp((double)(x), (y)))

#define _hypotl(x,y) ((long double)_hypot((double)(x), (double)(y)))

#define ldexpl(x,y) ((long double)ldexp((double)(x), (y)))

#define logl(x) ((long double)log((double)(x)))

#define log10l(x) ((long double)log10((double)(x)))

#define _matherrl _matherr

#define modfl(x,y) ((long double)modf((double)(x), (double *)(y)))

#define powl(x,y) ((long double)pow((double)(x), (double)(y)))

#define sinl(x) ((long double)sin((double)(x)))

#define sinhl(x) ((long double)sinh((double)(x)))

#define sqrtl(x) ((long double)sqrt((double)(x)))

#define tanl(x) ((long double)tan((double)(x)))

#define tanhl(x) ((long double)tanh((double)(x)))

#else /* __cplusplus */

inline long double acosl(long double _X)

{return (acos((double)_X)); }

inline long double asinl(long double _X)

{return (asin((double)_X)); }

inline long double atanl(long double _X)

{return (atan((double)_X)); }

inline long double atan2l(long double _X, long double _Y)

{return (atan2((double)_X, (double)_Y)); }

inline long double ceill(long double _X)

{return (ceil((double)_X)); }

inline long double cosl(long double _X)

{return (cos((double)_X)); }

inline long double coshl(long double _X)

{return (cosh((double)_X)); }

inline long double expl(long double _X)

{return (exp((double)_X)); }

inline long double fabsl(long double _X)

{return (fabs((double)_X)); }

inline long double floorl(long double _X)

{return (floor((double)_X)); }

inline long double fmodl(long double _X, long double _Y)

{return (fmod((double)_X, (double)_Y)); }

inline long double frexpl(long double _X, int *_Y)

{return (frexp((double)_X, _Y)); }

inline long double ldexpl(long double _X, int _Y)

{return (ldexp((double)_X, _Y)); }

inline long double logl(long double _X)

{return (log((double)_X)); }

inline long double log10l(long double _X)

{return (log10((double)_X)); }

inline long double modfl(long double _X, long double *_Y)

{double _Di, _Df = modf((double)_X, _Di);

*_Y = (long double)_Di;

return (_Df); }

inline long double powl(long double _X, long double _Y)

{return (pow((double)_X, (double)_Y)); }

inline long double sinl(long double _X)

{return (sin((double)_X)); }

inline long double sinhl(long double _X)

{return (sinh((double)_X)); }

inline long double sqrtl(long double _X)

{return (sqrt((double)_X)); }

inline long double tanl(long double _X)

{return (tan((double)_X)); }

inline long double tanhl(long double _X)

{return (tanh((double)_X)); }

inline float frexpf(float _X, int *_Y)

{return ((float)frexp((double)_X, _Y)); }

inline float ldexpf(float _X, int _Y)

{return ((float)ldexp((double)_X, _Y)); }

#if !defined(_M_MRX000) !defined(_M_ALPHA)

inline float acosf(float _X)

{return ((float)acos((double)_X)); }

inline float asinf(float _X)

{return ((float)asin((double)_X)); }

inline float atanf(float _X)

{return ((float)atan((double)_X)); }

inline float atan2f(float _X, float _Y)

{return ((float)atan2((double)_X, (double)_Y)); }

inline float ceilf(float _X)

{return ((float)ceil((double)_X)); }

inline float cosf(float _X)

{return ((float)cos((double)_X)); }

inline float coshf(float _X)

{return ((float)cosh((double)_X)); }

inline float expf(float _X)

{return ((float)exp((double)_X)); }

inline float fabsf(float _X)

{return ((float)fabs((double)_X)); }

inline float floorf(float _X)

{return ((float)floor((double)_X)); }

inline float fmodf(float _X, float _Y)

{return ((float)fmod((double)_X, (double)_Y)); }

inline float logf(float _X)

{return ((float)log((double)_X)); }

inline float log10f(float _X)

{return ((float)log10((double)_X)); }

inline float modff(float _X, float *_Y)

{ double _Di, _Df = modf((double)_X, _Di);

*_Y = (float)_Di;

return ((float)_Df); }

inline float powf(float _X, float _Y)

{return ((float)pow((double)_X, (double)_Y)); }

inline float sinf(float _X)

{return ((float)sin((double)_X)); }

inline float sinhf(float _X)

{return ((float)sinh((double)_X)); }

inline float sqrtf(float _X)

{return ((float)sqrt((double)_X)); }

inline float tanf(float _X)

{return ((float)tan((double)_X)); }

inline float tanhf(float _X)

{return ((float)tanh((double)_X)); }

#endif /* !defined(_M_MRX000) !defined(_M_ALPHA) */

#endif /* __cplusplus */

#endif /* _M_M68K */

#endif /* __assembler */

#if !__STDC__

/* Non-ANSI names for compatibility */

#define DOMAIN _DOMAIN

#define SING _SING

#define OVERFLOW _OVERFLOW

#define UNDERFLOW _UNDERFLOW

#define TLOSS _TLOSS

#define PLOSS _PLOSS

#ifndef _MAC

#define matherr _matherr

#endif /* ndef _MAC */

#ifndef __assembler /* Protect from assembler */

_CRTIMP extern double HUGE;

_CRTIMP double __cdecl cabs(struct _complex);

_CRTIMP double __cdecl hypot(double, double);

_CRTIMP double __cdecl j0(double);

_CRTIMP double __cdecl j1(double);

_CRTIMP double __cdecl jn(int, double);

int __cdecl matherr(struct _exception *);

_CRTIMP double __cdecl y0(double);

_CRTIMP double __cdecl y1(double);

_CRTIMP double __cdecl yn(int, double);

c语言编写三角函数

求sin的：参考下 #includestdio.h void main() { double x,a,b,sum=0; printf("请输入x的弧度值：\n"); scanf("%lf",x); int i,j,count=0; for(i=1;;i+=2) { count++; a=b=1; for(j=1;j=i;j++) { a*=x; b*=(double)j; } if(a/b0.0000001) break; else { if(count%2==0) sum-=a/b; else sum+=a/b; } } printf("%lf\n",sum); }

C语言函数求三角形，正方形还有园的面积

#include#definePI3.14159floaterea_round(floatr){//圆形面积returnr*r*PI;}floaterea_tri(floatd,floath){//三角形面积return0.5*d*h;}floaterea_rec(floata,floatb){//矩形面积returna*b;}intmain

用C语言实现三角函数及反三角函数怎么实现

#includestdio.h

#include math.h

void main()

{

double a,b,c,d;

scanf("%f,%f",b,d);

a=sin(b);/*这是三角函数*/

c=asin(d);/*这是反三角函数*/

printf("sin(b)=%f,asin(d)=%d",a,c);

}

其他三角函数如cos（x）什么的，可以直接用，前提有math.h的头文件


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