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What are the methods of math object in jquery

青灯夜游
青灯夜游Original
2023-01-18 13:58:412125browse

The methods of the math object are: 1. round(), used for rounding; 2. ceil(), which can be rounded up; 3. floor(), which can be rounded down; 4. pow() , can return the y power of x; 5. sqrt(), can return the square root of a number; 6. max(); 7. min(); 8. random(); 9. abx(); 10. sin( ); 11. asin(); 12. cos(); 13. acos(); 14. tan(); 15. exp().

What are the methods of math object in jquery

The operating environment of this tutorial: windows7 system, jquery3.6 version, Dell G3 computer.

jquery Math object method

Rounding Math.round()

Math.round()
//四舍五入,去最接近的整数
Math.round(2.2) //--2
Math.round(2.5) //--3

Round up Math.ceil()

Math.ceil()
//上取整
Math.ceil(2.2) //--3
Math.ceil(2.5) //--3

Round down Math.floor()

Math.floor()
//下取整
Math.floor(2.2) //--2
Math.floor(2.5) //--2

Returns the y power of xMath.pow(x,y)

Math.pow(x,y)
//返回x的y次幂
Math.pow(2,2) //--4
Math.round(2,3) //--8

Returns the square root of xMath.sqrt()

Math.sqrt(x)
Math.sqrt(4) //2
Math.sqrt(9) //3
Math.sqrt(6) //2.449489742783178

Return the highest value in x,y,z,…,n Math.max(x,y,z,…n)

Math.max(x,y,z,.....n)
//返回 x,y,z,...,n 中的最高值
//Math.max(2,3,4,6,5)--6

Return the minimum value in x,y,z,…,n Math.min(x,y,z,…n)

Math.min(x,y,z,.....n)
//返回 x,y,z,...,n中的最小值 
//Math.max(2,3,4,6,5)--2

Returns a random number between 0 ~ 1 Math.random()

Math.random()
//返回 0 ~ 1 之间的随机数
//返回0-100之间的随机数  x=100 y=0
//parseInt(Math.random()*(x - y + 1) + y)

Returns the absolute value of xMath.abx( x)

Math.abx(x)
//返回 x 的绝对值
Math.abx(2) //--2
Math.abx(-2) //--2

Returns the sine of xMath.sin(x)

Math.sin(x)
//返回 x 的正弦值
Math.sin(1)
//0.8414709848078965

Returns the arcsine of xMath.asin(x)

Math.asin(x)
//返回 x 的反正弦值
Math.asin(-2);  // NaN
Math.asin(-1);  // -1.5707963267948966 (-pi/2)
Math.asin(0);   // 0
Math.asin(0.5); // 0.5235987755982989
Math.asin(1);   // 1.570796326794897 (pi/2)
Math.asin(2);   // NaN
//对于小于 -1 或大于 1 的参数值,Math.asin 返回 NaN。

Returns the cosine of x Math.cos(x)

Math.cos(x)
Math.cos(1)
//0.5403023058681398
Math.cos(-1)
//0.5403023058681398

Returns the inverse cosine of x Math.acos(x)

Math.acos(-1)
//3.141592653589793
Math.acos(-2)
//NaN
Math.acos(0)
//1.5707963267948966
Math.acos(1)
//0
//对于小于 -1 或大于 1 的参数值,Math.acos 返回 NaN。

Returns the tangent of the angle Math.tan()

Math.tan()
Math.tan(15)
//-0.8559934009085188

Returns E The exponent of the power of

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