转自 http://blog.csdn.net/lyqmath/article/details/6004885
目的:对曲线数据做对称绘制
思想:根据两曲线按a对称,则x1 + x2 = 2a的原则
代码:
clc; clear all; close all; x = linspace(-10, 10); y = x.^3; a = 5; figure; hold on; box on; plot(x, y, \'b-\'); x1 = 2*a-x; y1 = y; plot(x1, y1, \'r-\') plot([a a], [y(1) y(end)], \'k:\', \'LineWidth\', 2);
结果:
结论:
基于简单的数学对称思想,绘制按值对称的曲线。