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  1. TOOLS - NUMERICAL
  2. MATLAB

Numerical Analysis

sum(x) % 矩形积分
cumsum(x) % 前缀和数组
trapz(x) % 均匀步长梯形公式
trapz(x,y) % 梯形公式，步长可能不均匀
quad('fun',a,b,tol=1e-6) % 辛普森公式，a,b为区间
quadl('fun',a,b,tol) % 高斯公式
dblquad('fun',xlo,xhi,ylo,yhi) % quad计算二重积分
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Last updated 3 years ago

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