抛物线源码,可自由输入数字并自动生成图形，可自由下载。-Parabolic source, freely input and automatically generated digital graphics, free to download.

偏微分方程数值解中的双曲型方程显示格式与抛物线方程显示格式，适合初学。-Numerical Solution of Partial Differential Equations of hyperbolic equations and parabolic equations display format display format, suitable for beginners.