DEMO_Graphic_Math_Calculator

references:VCL:- Expression Parser v1.6- TRchart(SDL) from Numeric Math in Pascal:QGaus for integral calculationsChder , Chebev , Chebft, (chebychev ) for differtial calculationsTo do:boundary for acos(x) and asin(x).Note:Its just an idea for a graphic calcucator so you have to improve it further.