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function f(x) { y = 23.9989*Math.log(0.0898586*x); return y } ... aX = 0; bX = 500; aY = 0; bY = 100 Dx = 100; Dy = 10 ... Qx = [ 12,16, 17, 22, 57, 135,180,410 ] Qy = [ 0, 3,12.5, 23, 42, 56, 63, 90 ] ... AX=BX=AY=BY="" ... AAX=aX; BBX=bX; AAY=aY; BBY=bY