matlab第四次做业整理

一、计算参数方程java syms t y=sin(t)/(t+1).^3; x=cos(t)/(t+1).^3; s=diff(y,t,3)/diff(x,t,3); s=simplify(s) returns s = -(cos(t)/(t + 1)^3 - (36*cos(t))/(t + 1)^5 - (9*sin(t))/(t + 1)^4 + (60*sin(t))/(t + 1)^6

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