Matlab的离散点曲线导数曲率数值模拟方法

clc; clear all; close all; x0 = linspace(0, 1); y0 = sin(x0).*cos(x0); h = abs(diff([x0(2), x0(1)])); % 模拟一阶导 figure; box on; hold on; ythe1 = cos(x0).^2 - sin(x0).^2; %理论一阶导 yapp1 = gradient(y0, h);

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