what cos 45 degrees

It's easy to find the path.Copy codeThe Code is as follows:Function xy45 (x1, y1) {// right-angle coordinate rotation 45 degreesVar x0 = 0;Var y0 = 0;Var s =-Math. PI/4;Var o = {};O. x = int (x0 + x1 * Math. cos (s) + y1 * Math. sin (s) + dx;O. y

As for the rotation of the picture, there are generally 3 solutions: (1) filter (2) CSS3 (3) canvas. The next step is explained.For the convenience of understanding, we mainly explain in 90 degrees, taking into account other angles.1. Filter (ie

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,

Geographical distance sorting, range searching, and geographical distance sorting Reference: Geospatial Distance Computing Optimization First, this article describes two geographic models: sphere and elliptical. Generally, websites do not require

Recently, we have been working on this coordinate transformation task, which involves many profound things such as surveyors. Here I will not explain these difficult theories. Here, I will post the code to share with you. In fact, if you want to

Java report tool FineReport common functions usage Summary (mathematical and trigonometric functions), javafinereport  ABS ABS (number): returns the absolute value of a specified number. Absolute Value refers to a value without positive or negative

This article mainly and we introduce the use of CSS to achieve arbitrary size, any direction and any angle of the arrows examples of relevant information, small series feel very good, and now share to everyone, but also for everyone to do a

This article mainly introduces the use of CSS to achieve arbitrary size, arbitrary direction and arbitrary angle of the arrows examples of relevant information, small series feel very good, and now share to everyone, but also for everyone to do a

1. Draw the cosine curve Display 0 ~ with "*" on the screen ~ Cosine Function cos (x) curve with 360 degrees * Problem analysis and Algorithm DesignIf arrays are used in the program, this problem is very simple. However, if arrays cannot be used,