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function f(x) { y = 7.19186 * x  - 301.0872; return y }
...
aX = 50; bX = 75; aY = 80; bY = 210
Dx = 5; Dy = 10
...
yy=[100,150,200]; xx=[50,60,70]
Qx= [ 60, 69, 66, 64, 54, 67, 59, 65, 63 ]
Qy= [ 136,198,194,140,93,172,116,174,145 ]
...
AX=BX=AY=BY=""
...
AAX=aX; BBX=bX; AAY=aY; BBY=bY