what sin cos and tan used for

1. Coordinate system:Flash coordinate system and mathematical coordinate system: the X axis is the same, and the y axis is the opposite.[Mathematical coordinate system][Coordinate system in Flash]2. Conversion between Angle and Radian:(1) radians:

Matrix learning-Basic Knowledge Previously, I learned about matrices in linear algebra and had some knowledge about the basic operations of matrices. I learned how to use matrices to change images when I used GDI + some time ago, after reading this

Previously, I learned about matrices in linear algebra and had some knowledge about the basic operations of matrices. I learned how to use matrices to change images when I used GDI + some time ago, after reading this article, I will summarize it

Recently, I learned about Android Image Processing in the system (I collected some information on the Internet and compiled my own testing program.) Here I will summarize: I. colormatrix class Colormatrix is a 5x4 matrix. The first line indicates

Name Abs Category Mathematical functions Prototype Abs (number) Parameters Must be selected. The number argument is a valid numeric expression of any type "Return value" Type of same number "Exception/Error" No Description Returns the absolute value

Previously, I learned about matrices in linear algebra and had some knowledge about the basic operations of matrices. I learned how to use matrices to change images when I used GDI + some time ago, after reading this article, I will summarize it

Not to mention nonsense: 0. Overview-Demand Analysis-function description-restrictions and defects improvement + knowledge preparation 1. essential differences between Taylor series and Fourier series, Taylor's expansion 2. Function projection and

This article mainly introduces 97 kinds of curve equations commonly used in proe, the coordinate system used, and the legends for generating curves.  The curve types on each page are as follows:Page 1: disc spring, spiral, helical curve,

Source Address: http://www.geek-workshop.com/thread-1695-1-1.htmlThis post is translated from the IMU (accelerometer and Gyroscope devices) guide used in embedded applications.This article mainly introduces the mathematical models and basic

This post is translated from the IMU (accelerometer and Gyroscope devices) guide used in embedded applications.This article mainly introduces the mathematical models and basic algorithms of accelerometers and gyroscopes, and how to fuse the two,