Hi,

I'am trying to parse a string into quadratic objective function.

this is the expression : 0.5(63x0.012 + 1.41724668855095x² +39.69)
and there are the constraints : x0.2 + 6.3 = 0 and x + 63- 1 = 100

systematically the parsing does not work.

First I thought it was because my decimal separator was comma instead of point, but after modifications, still does not work.

I have tried to parse a very simple expression as "2x² -5" but does not work too.

I am looking for some help : parsing expression regarding the white space, the signs, the coefficients position ....

Thank you so much for any help.

Regards,

Iris