Recommended articles about php atan2() function

This article collects several articles about the php atan2() function. Welcome everyone to watch

1. A summary of PHP mathematical operation functions that are classic and worthwhile Collection html calls php function excel function quadratic function

## Introduction: php, function: A large summary of PHP mathematical operation functions Classics worth collecting: This article summarizes and analyzes PHP mathematical operation functions . Share it with everyone for your reference, the details are as follows: 1. Description of commonly used functions: Abs: Get the absolute value. Acos: Get the arc cosine value. Asin: Get the arcsine value. Atan: Get the arctangent value. Atan2: Calculates the arctangent of a two number. base_convert: Convert the carry method of the number. BinDec: Convert binary to decimal. Ceil: Calculates the smallest integer greater than the specified number. Cos: cosine calculation. DecBin: Convert decimal to binary. DecHe

2. php function accumulation summary_PHP tutorial

Introduction: PHP function accumulation summary. Math functions: 10 commonly used ones marked in red. abs absolute value acos inverse cosine acosh inverse hyperbolic cosine asin arc sine asinh inverse hyperbolic sine atan2 arc tangent of two parameters atan arc tangent atanh inverse double

3. php Function accumulation summary

#Introduction: Math function: 10 commonly used ones marked in red. abs — Absolute acos — Inverse cosine acosh — Inverse hyperbolic cosine asin — Arc sine asinh — Inverse hyperbolic sine atan2 — Arc tangent of two parameters atan — Arc tangent atanh — Inverse hyperbolic tangent base_convert — Convert between arbitrary bases Digital bindec - Binary to decimal conversion

4. A little difference between the atan function and the atan2 function

Introduction: atan and atan2 are arctangent functions. For example: there are two points point(x1,y1), and point(x2,y2); then the angle calculation method of the slope formed by these two points is: floatangle = atan( ( y2-y1)/(x2-x1) ); or float angle = atan2( y2-y1, x2-x1); The difference between atan and atan2: 1: The parameter filling method is different

5. javascript atan2() Calculate the angle from the X axis to a certain point

Introduction: The javascript atan2() method can return the angle from the y). This function has two parameters. The first parameter specifies the X coordinate of the point, and the second parameter specifies the Y coordinate of the point. Note the order of the parameters of this function. The Y coordinate is passed before the X coordinate. This article explains to you the basic syntax and usage examples of the atan2 function. Coders who need it can refer to it.

6. Detailed explanation of the use of Math.atan2() method in JavaScript_Basic knowledge

Introduction: This article The article mainly introduces the detailed explanation of the use of Math.atan2() method in JavaScript, which is the basic knowledge for introductory learning of JS. Friends in need can refer to the following

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