data is of the order x,y:(where y=f(x))
(-1,-0.4401), (-0.75,0.0447), (-0.50,0.4311) (-0.25,0.6694), (0,0.7652), (0.25,0.7522)
,(0.50,0.6714),(0.75,0.5587),(1,0.4401)
i am a teaching assistant at engineering university,unfortunately i have not good a soft background in programming with C++(i know how to do it in matlab though).
if one of you could build the program,i shall be very very thankful to you