What are the commonly used mathematical functions in JS?

This time I will bring you what common mathematical functions are in JS? , what are the precautions for implementing mathematical functions in JS? The following is a practical case, let’s take a look.

1. Code

<script language="javascript">
<!--
document.write("欧拉常数e的值为(e属性)："+Math.E+"<br>");
document.write("2的自然对数为(LN2属性)："+Math.LN2+"<br>");//2的几次方等于e
document.write("10的自然对数为(LN10属性)："+Math.LN10+"<br>");//10的几次方等于e
document.write("7的自然对数(log()方法)："+Math.log(7)+"<br>");//7的几次方等于e
document.write("0的自然对数(log()方法)："+Math.log(0)+"<br>");
document.write("-1的自然对数(log()方法)："+Math.log(-1)+"<br>");
document.write("2的自然对数(log()方法)："+Math.log(2)+"<br>");//2的几次方等于e
document.write("以2为基数的e的对数的值："+Math.LOG2E+"<br>");//E的几次方等于2
document.write("以10为基数的e的对数的值："+Math.LOG10E+"<br>");//E的几次方等于10
document.write(Math.SQRT1_2);//0.5的平方根
document.write(Math.SQRT2);//2的平方根
document.write("2的平方根:"+Math.sqrt(2)+"<br>");
document.write("4的平方根:"+Math.sqrt(4)+"<br>");
document.write("5的平方根:"+Math.sqrt(5)+"<br>");
document.write("10的平方根:"+Math.sqrt(10));
document.write("-2的绝对值:"+Math.abs(-2)+"<br>");
document.write("0的绝对值:"+Math.abs(0)+"<br>");
document.write("2的绝对值:"+Math.abs(2)+"<br>");
document.write("2.7的绝对值:"+Math.abs(2.7)+"<br>");
document.write("-2.7的绝对值:"+Math.abs(-2.7));
document.write("1的正弦值:"+Math.sin(1)+"<br>");
document.write("0的正弦值:"+Math.sin(0)+"<br>");
document.write("-1的正弦值:"+Math.sin(-1)+"<br>");
document.write("1的反正弦值的正弦值:"+Math.sin(Math.asin(1))+"<br>");
document.write("1的余弦值:"+Math.cos(1)+"<br>");
document.write("0的余弦值:"+Math.cos(0)+"<br>");
document.write("-1的余弦值:"+Math.cos(-1)+"<br>");
document.write("1的反余弦值的余弦值:"+Math.cos(Math.acos(1))+"<br>");
document.write("1的正切值:"+Math.tan(1)+"<br>");
document.write("0的正切值:"+Math.tan(0)+"<br>");
document.write("-1的正切值:"+Math.tan(-1)+"<br>");
document.write("1的反正切值的正切值:"+Math.tan(Math.atan(1))+"<br>");
document.write("3和5中的最大数:"+Math.max(3,5)+"<br>");
document.write("3和5中的最小数:"+Math.min(3,5)+"<br>");
document.write("-3和5中的最大数:"+Math.max(-3,5)+"<br>");
document.write("-3和5中的最小数:"+Math.min(-3,5)+"<br>");
document.write("3.5和3.4中的最大数:"+Math.max(3.5,3.4)+"<br>");
document.write("3.5和3.4中的最小数:"+Math.min(3.5,3.4));
document.write("对7.5进行四舍五入:"+Math.round(7.5)+"<br>");
document.write("对7.3进行四舍五入:"+Math.round(7.3)+"<br>");
document.write("对-7.8进行四舍五入:"+Math.round(-7.8)+"<br>");
document.write("对-7.3进行四舍五入:"+Math.round(-7.3));
document.write("对7.7进行上舍入:"+Math.ceil(7.7)+"<br>");
document.write("对7.3进行上舍入:"+Math.ceil(7.3)+"<br>");
document.write("对-7.8进行上舍入:"+Math.ceil(-7.8)+"<br>");
document.write("对-7.3进行上舍入:"+Math.ceil(-7.3));
document.write("对7.7进行下舍入:"+Math.floor(7.7)+"<br>");
document.write("对7.3进行下舍入:"+Math.floor(7.3)+"<br>");
document.write("对-7.8进行下舍入:"+Math.floor(-7.8)+"<br>");
document.write("对-7.3进行下舍入:"+Math.floor(-7.3));
//-->
</script>

2. Running results

The value of Euler's constant e is (e attribute): 2.718281828459045
The natural logarithm of 2 is (LN2 attribute): 0.6931471805599453
The natural logarithm of 10 is (LN10 attribute): 2.302585092994046
7 The natural logarithm of (log() method): 1.9459101490553132 The natural logarithm of
0 (log() method): The natural logarithm of -Infinity
-1 (log() method): NaN
2 The natural logarithm (log() method): 0.6931471805599453
The value of the logarithm of e in base 2: 1.4426950408889633
The value of the logarithm of e in base 10: 0.4342944819032518
0.70710678118654761.41 421356237309512 The square root of: 1.4142135623730951
The square root of 4: 2
The square root of 5: 2.23606797749979
The square root of 10: 3.1622776601683795-2 The absolute value: 2
The absolute value of 0: The absolute value of 0
2 Value: 2
Absolute value of 2.7: 2.7
- Absolute value of 2.7: Sine value of 2.71: 0.8414709848078965
Sine value of 0: 0
- Sine value of 1: -0.8414709848078965
The sine of the arcsine of 1: 1 The cosine of the arcsine of 1: 0.5403023058681398 The cosine of
0: 1
- The cosine of 1: 0.5403023058681398 The cosine of the arcsine of
1: The tangent of 1
1: 1.5574077246549023 The tangent of 0: 0 The tangent of
-1: -1.5574077246549023 The tangent of the arctangent of
1: 0.9999999999999999
in 3 and 5 The maximum number: 5
The minimum number among 3 and 5: 3
-The maximum number among 3 and 5: 5
-The minimum number among 3 and 5:-3
3.5 and 3.4 The largest number in: 3.5
The smallest number between 3.5 and 3.4: 3.4 Rounding 7.5: 8
Rounding 7.3: 7
Rounding -7.8: -8
Rounding -7.3 Rounding up: -7 Rounding up 7.7: 8
Rounding up 7.3: 8
Rounding up -7.8: -7
Rounding up -7.3: -7 Rounding down 7.7: 7
Rounding down 7.3: 7
Rounding down -7.8: -8
Rounding down -7.3: -8

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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