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//直角函数ezplot('5*sin(x)+4*sin(x)',[0,5])x=0:0.2:5;y=exp(tan(x));plot(x,y)//参数函数ezplot('3*cot(t)','csc(t)',[0,5])ezplot('3*cos(t)','cos(t)^(2)/exp(t)',[0,5])//隐函数ezplot('x^(2)+y^(3)+1=x',[-2,2,-2,2])ezplot('exp(x)+cos(y)-1=x',[-2,2,-2,2])//极坐标函数t=0:0.2:7;r=sin(1-cos(t));polar(t,r)t=0:0.2:7;r=exp(1-sin(t));polar(t,r)//数列极限syms nlimit(cos(n)^(1/(n+1)),n,+inf)ans = 1syms nlimit(2^(n)/n^2,n,-inf)ans = 0//函数极限syms xlimit(x*(2-x/((x-6)^2)),x,6)ans =  -infinitysyms xlimit(1/(1+exp(1/(x+1))),x,1,'left')ans = 1/(exp(1/2) + 1) //一阶导数syms xdiff(exp(sin(x)),x)ans = exp(sin(x))*cos(x)syms xdiff(2*exp(x^(1/2))*(x^(1/2) - 1),x)ans = 1/x^(1/2)*exp(x^(1/2)) + 1/x^(1/2)*exp(x^(1/2))*(x^(1/2) - 1)//高阶导数diff(exp(cos(x)),x,5)ans = - 15*exp(cos(x))*cos(x)^2*sin(x) + 10*exp(cos(x))*cos(x)*sin(x)^3 - 15*exp(cos(x))*cos(x)*sin(x) - exp(cos(x))*sin(x)^5 + 10*exp(cos(x))*sin(x)^3 - exp(cos(x))*sin(x) diff(1/x^(1/2)*exp(x^(1/2)),x,3)ans = 1/8/x^2*exp(x^(1/2)) + 15/8/x^3*exp(x^(1/2)) - 3/4/x^(5/2)*exp(x^(1/2)) - 15/8/x^(7/2)*exp(x^(1/2)) //不定积分syms t Cint(5/((t-5)*(t-6)*(t-7)),t)+Cans = C - 5*ln(t - 6) + 5/2*ln(t^2 - 12*t + 35)syms x a b Cint(exp(a*x+b)*sin(b*x))+Cans = C - exp(b + a*x)*(b*cos(b*x) - a*sin(b*x))/(a^2 + b^2)//定积分syms xf=exp(sqrt(x+1));F=int(f,0,1)F = 2*exp(2^(1/2))*(2^(1/2) - 1)syms xf=sin(x^2)/x;F=int(f,0,5)F = 1/2*Si(25)