Article Recommendations for PHP atan2 () functions

This article collects a few articles about PHP atan2 () functions, and you are welcome to watch

1. PHP Math function Large Summary classic worth collecting HTML call PHP function Excel function two times letter

Introduction: PHP, Functions: PHP math function Large summary of the classic is worth collecting: This article summarizes the PHP mathematical operation function. Share to everyone for your reference, as follows: One, commonly used function Description: Abs: Obtain absolute value. Acos: Gets the inverse cosine value. Asin: Gets the inverse sine value. Atan: Gets the inverse tangent value. Atan2: Calculates the inverse tangent of two numbers. Base_convert: Converts the carry mode of a number. Bindec: binary turns into 10 decimal. Ceil: Calculates the smallest integer greater than the specified number. COS: cosine calculation. Decbin: the decimal binary. Deche

2. php function Accumulation Summary _php tutorial

Introduction: PHP function accumulation Summary. Math function: 10 more commonly used red. ABS absolute acos Inverse cosine acosh inverse hyperbolic cosine asin anyway chord asinh inverse hyperbolic sine atan2 two parameters of the arc tangent atan anyway tangent atanh inverse double

3. Summary of PHP function accumulation

Summary: Math function: 10 more commonly used red. abs-absolute acos-Inverse cosine acosh-inverse hyperbolic cosine asin-anyway chord asinh-inverse hyperbolic sine atan2-two parameters of the arc tangent atan-anyway tangent atanh-inverse hyperbolic tangent base_convert-in any binary Convert digital bindec-binary to Decimal

4. The difference between the Atan function and the ATAN2 function

Summary: Atan and atan2 are all seeking the inverse tangent function, such as: There are two points (x1,y1), and Point (X2,y2); Then the angle calculation method of the slope of these two points is: Floatangle = Atan ((y2-y1)/(X2-X1)); or float angle = atan2 (y2-y1, x2-x1); Atan and Atan2 differences: 1: The method of filling the parameters is not

5. JavaScript atan2 () calculates the angle of the x-axis to a point

Summary: The JavaScript atan2 () method returns the angle from the x-axis to the point (or X, y). This function has two parameters, the first parameter specifies the x-coordinate of the point, the second parameter specifies the Y-coordinate of the point, note the parameter order of the function, and the y-coordinate is passed before the x-coordinate. This article explains the basic syntax and usage examples of atan2 functions. Need to the code farmers can refer to.

6. The Math.atan2 () method in JavaScript uses a detailed knowledge of the basics

Introduction: This article mainly introduces the Math.atan2 () method used in JavaScript, is the basic knowledge of JS primer Learning, the need for friends can refer to the following

"Related question and answer recommendation":

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Front-end-JavaScript question: How do you understand the "origin" and "x-axis" in math.atan2 ()?