safeng1122 |
2013-04-08 13:21 |
'计算夹角函数 CRpMpPi@} Function ff_angle(x1 As Single, y1 As Single, x2 As Single, y2 As Single, x3 As Single, y3 As Single) As Single Ej;BI#gx= cax = x2 - x1 '=eG[#gy cay = y2 - y1 Y:;]qoF cbx = x2 - x3 = ^NTHc^* cby = y2 - y3 8l< | |