c++实现bezier曲线，算出bezier曲线的参数方程的系数，供其他绘图软件进行绘图。,c++ achieve Bezier curves, Bezier curves to calculate the parameters of equation coefficients for the other mapping software for mapping.

用NRTL模型,求解萘在一种离子液体中的活度系数, 求解非线性方程-Using the NRTL model, and solve the naphthalene activity coefficient in an ionic liquid, solving nonlinear equation