c+ +三角函數(shù)

C ++三角函數(shù) (C++ Trigonometric functions)

Trigonometric functions are also called circular functions or angle functions or goniometric functions, which are used to trigonometric computations like computing cosine, sine, tangent values.

三角函數(shù)也稱為圓函數(shù)或角度的功能或測(cè)角函數(shù) ，其用于三角函數(shù)的計(jì)算等計(jì)算余弦，正弦，正切值。

三角函數(shù)列表 (List of trigonometric functions)

Here is the list of all trigonometric functions with descriptions and their syntaxes,

這是所有三角函數(shù)及其說明和語(yǔ)法的列表，

#myInput{width:100%;font-size:16px;padding:12px 20px 12px 40px;border:1px solid #ddd;margin-bottom:12px}#myTable{border-collapse:collapse;width:100%;border:1px solid #ddd;font-size:18px}#myTable td,#myTable th{text-align:left;padding:2px}#myTable tr{border-bottom:1px solid #ddd}#myTable tr.header,#myTable tr:hover{background-color:#f1f1f1}#myTable a,#myTable a:visited{color:#00f;text-decoration:none}#myTable a:hover{text-decoration:underline} #myInput{width:100%;font-size:16px;padding:12px 20px 12px 40px;border:1px solid #ddd;margin-bottom:12px}#myTable{border-collapse:collapse;width:100%;border:1px solid #ddd;font-size:18px}#myTable td,#myTable th{text-align:left;padding:2px}#myTable tr{border-bottom:1px solid #ddd}#myTable tr.header,#myTable tr:hover{background-color:#f1f1f1}#myTable a,#myTable a:visited{color:#00f;text-decoration:none}#myTable a:hover{text-decoration:underline} Trigonometric functionsDescriptionSyntax

cos()	It returns the cosine of an angle of x radians.	cos(x)
sin()	It returns the sine of an angle of x radians.	sin(x)
tan()	It returns the tangent of an angle of x radians.	tan(x)
acos()	It returns the arc cosine of x in radians.	acos(x)
asin()	It returns the arc sine of x in radians.	asin(x)
atan()	It returns the arc tangent of x in radians.	atan(x)
atan2()	It returns the arc tangent of y/x in radians.	atan2(y,x)

三角函數(shù) 描述 句法

cos()	它返回x弧度角的余弦值。	cos(x)
罪()	它返回x弧度角的正弦。	sin(x)
tan()	它返回x弧度角的切線。	tan(x)
acos()	它以弧度返回x的反余弦值。	acos(x)
asin()	它以弧度返回x的反正弦值。	asin(x)
曬黑()	它以弧度返回x的反正切。	阿坦(x)
atan2()	它以弧度返回y / x的反正切。	atan2(y，x)

C ++代碼演示三角函數(shù)示例 (C++ code to demonstrate example of trigonometric functions)

// C++ code to demonstrate the example of // trigonometric functions#include <iostream> #include <cmath> using namespace std;// main() section int main() {float x;float y;x = 0.25;cout<<"cos("<<x<<") : "<<cos (x)<<endl;cout<<"sin("<<x<<") : "<<sin (x)<<endl;cout<<"tan("<<x<<") : "<<tan (x)<<endl;cout<<"acos("<<x<<"): "<<acos(x)<<endl;cout<<"asin("<<x<<"): "<<asin(x)<<endl;cout<<"atan("<<x<<"): "<<atan(x)<<endl;y = 1.0;cout<<"atan2("<<y<<","<<x<<"): "<<atan2(y,x)<<endl; return 0; }

Output

輸出量

cos(0.25) : 0.968912 sin(0.25) : 0.247404 tan(0.25) : 0.255342 acos(0.25): 1.31812 asin(0.25): 0.25268 atan(0.25): 0.244979 atan2(1,0.25): 1.32582

Reference: C++ cmath header

參考： C ++ cmath標(biāo)頭

翻譯自: https://www.includehelp.com/cpp-tutorial/trigonometric-functions.aspx

c+ +三角函數(shù)

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