sin

The canvas knowledge points are summarized as follows so that they can be consulted at any time. 1, filled rectangular fillrect (x,y,width,height); 2, draw the rectangular frame strokerect (x,y,width,height); 3, Erase rectangular clearrect

The parabolic motion of an object is one of the basic sports physical models in the game. In the PC game can be easily simulated by the gravity formula, but in mobile games, because most mobile phones do not support floating-point operations so can

Using the Math object Sina CoA to get the coordinate value it's easy to get an MC to do a circular motion, such as the following statement:On (Press) {i=0;Onenterframe=function () {i++;Mc._x=150*math.cos (Math.pi/180*i);Mc._y=150*math.sin (Math.pi/18

Introduction to the formula of sin function Grammar: SIN (number) Number is the angle, in radians, that requires a sine. Note: If the unit of the parameter is degrees, you can multiply PI ()/180 or use the RADIANS function to convert it to

Geo.cra[at]gmail[dot]com}Unit opticalflowlk; Interface UsesMath, Windows, sysutils, variants, Classes, Graphics, Unitypes, Colorconv; Type TOPTICALFLOWLK = ClassPrivateImageold, Imagenew:ttriplelongintarray;Imagegray, DX, dy, dxy:tdoublelongintarray;