Taylor+Linear 源代码

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Written by David MacKenzie, with help from Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, Roland McGrath, Noah Fr…

x0=0:.1:1; y0=(x0.^2-3*x0+5).*exp(-5*x0).*sin(x0); p3=polyfit(x0,y0,3); vpa(poly2sym(p3),10) % 可以如下显示多项式 x=0:.01:1; ya=(x.^2-3…

syms x; c=taylor(exp(-2*x),10); c=sym2poly(c); c=c(end:-1:1); x=0:0.01:8; nd=[3:7]; xx=[0,2,2+eps,8]; yy=[0,0,1,1]; plot(xx,yy); …

x0=-2*pi:0.01:2*pi; y0=sin(x0); syms x; y=sin(x); plot(x0,y0), axis([-2*pi,2*pi,-1.5,1.5]); hold on for n=[8:2:16] …

function H=iir_pade(r0,a,n,T) syms x r b; aas=((1-x^2)/(1+b*x)^2)^r; b0=(3+a-2*sqrt(3*a))/(3-a); aas=subs(aas,{r,b},{r0,b0…

clear clc syms x; f='x^2*(sin(x))^2'; diff(f); f1=simple(ans) diff(f,x,2); f2=simple(ans) diff(f,x,3); f3=simple(ans)…

%求级数和 syms x k s1=symsum(1/k^2,1,10) %计算级数的前10项和 s2=symsum(1/k^2,1,inf) %计算级数和 s3=symsum(x^k,'k',0,inf) %计算对k为自变量的级数和 syms…

syms x; y='1/(x^2+4*x+3)*sin(x)'; y1= diff(y,x) latex(y1) ccode(y1) y2=int(y1,x) y2=simple(y2) syms a b; y3=int(y1,…