摘要: (1)书上的代码 tic,A=rand(500);B=inv(A);norm(A*B-eye(500)),toc (2)转化为latex的代码有问题,换元没问题 syms x s;y=x^5+3*x^4+4*x^3+2*x^2+3*x+6;y1=simplify(subs(y,x,(s-1)/(s+ 阅读全文
posted @ 2020-07-20 21:16 Math&Nav 阅读(1102) 评论(0) 推荐(0) 编辑