求证!sin(u+v) / cos(u+v) = (sinu cosv + cosu sinv) / (cosu cosv - sinu sinv)为什么 sin(u+v) / cos(u+v) = (sinu cosv + cosu sinv) / (cosu cosv - sinu sinv)

求证!sin(u+v) / cos(u+v) = (sinu cosv + cosu sinv) / (cosu cosv - sinu sinv)为什么 sin(u+v) / cos(u+v) = (sinu cosv + cosu sinv) / (cosu cosv - sinu sinv) y=sin(u-v)-cos(u+v) 求dy 用u,v,du,dv表示 求（MATLAB）圆锥面x=u*sin(v) y=u*cos(v) z=u MATLAB新手求助ezmesh((6+2*cos(u)).*cos(v),6+2*cos(u)).*sin(v),2*sin(u),[-5,5,-5,5])哪里错了~ solidworks中的方程驱动曲线应用：x(v,u)=a*v*cos(u)sin(v);y(v,u)=b*sin(v)cos(u）;z(v,u)=c*sin(sinv)*u这个方程里有两个未知数,v,u,画出的是蝴蝶曲线,只用solidworks画,不好意思,我把方程的第三个写错了,应该是 matlab 旋转function mobius_bandclear all; close all%option menuOPT.color = hsv;for a=0:112; for b=0:60; u=a/2; w=b/2; v=w/50-0.3; X(a+1,b+1)=cos(u)+v*cos(u/2)*cos(u); Y(a+1,b+1)=sin(u)+v*cos(u/2)*sin(u); Z(a+1,b+1)=v*sin(u/2); end endsurf(X,Y,Z) vi matlab 旋转clear all; close all%option menuOPT.color = hsv;for a=0:112; for b=0:60; u=a/2; w=b/2; v=w/50-0.3; X(a+1,b+1)=cos(u)+v*cos(u/2)*cos(u); Y(a+1,b+1)=sin(u)+v*cos(u/2)*sin(u); Z(a+1,b+1)=v*sin(u/2); end endsurf(X,Y,Z) view(45,45) shading in matlab怎么根据曲面方程画出曲面?方程如下 该怎么编程?画出来应该是个螺旋曲面h=k/40; v = (u*cos(0.1847)*40+sin(0.1847)*(u*cos(k)+65*sin(k)-200))/sin(k);x0=u;y0=v*sin(0.1847)-65;z0=v*cos(0.1847);x1=-cos(k)*cos(h)*x0+sin(k)* matlab绘图三角函数 x=(1+cos(u))cos(u);y=(1+cos(u))sin(u);z=sin(u)怎么绘图? matlab语句问题[ψ,θ]=solve('v=(Q*a)/m*cos(ψ)-u/r^2*sin(θ)','A=(Q*a)/(m*v)*sin(ψ)+(v/r-u/(r^2*v)*cos(θ)','R=v*sin(A)','B=v*cos(ψ)/r','Q=-7500/2940','v=1700','m=2400','r=1752','u=1.633','θ','ψ') [ψ,θ]=solve('v=(Q*a)/m*cos(ψ)-u/r^2*sin( 如何使用matlab 绘制三维曲面图?u=0:pi/50:2*pi;v=0:pi/50:2*pi;x=(1+cos(u)).*cos(v);y=(1+cos(u)).*sin(v);z=sin(u);下面如何弄呢?plot3 不行啊 mesh 也不行 真的不知道要怎么样画了 mathematica里面染色的hue函数问题a := 0.1b := 0.1c := 0.1x := a*Sin[u]*Cos[v]y := b*Sin[u]*Sin[v]z := c*Cos[u]ParametricPlot3D[{x,y,z},{u,0,Pi},{v,0,2 Pi]},ColorFunction -> Function[{x,y,z},Hue[x^2]]]为什么我的球染色出来的颜色不 关于matlab中球面与柱面相交图形的作法请问程序为什么这么写?t=0:0.1:pi;r=0:0.1:2*pi;[r,t]=meshgrid(r,t);x=2*sin(t).*cos(r);y=2*sin(t).*sin(r);z=2*cos(t);u=-pi/2:0.1:pi/2;v=-3:0.1:3;[u,v]=meshgrid(u,v);x1=2*cos(u).^2;y1=sin(2*u); 解方程时,突然中断,不知什么原因,请教matlab高手,程序如下syms V Q2 p r2 a0 i23 r3 u x2 y2 z2 Q3 x3 y3; u=atan(-r2.*i23./(r2.*cos(Q2)+a0));x2=p.*cos(V)+r2;y2=p.*cos(u).*sin(V);z2=p.*sin(u).*sin(V);Q3=Q2/i23; x3=x2.*cos(Q3).*cos(Q2)- 求证三角函数题目求证 cos[ w( t - x/u -L/2u )]+cos[ w( t + x/u - L/2u) + p]=2cos( wx/u + p/2)cos(wt - wL/2u + p/2)有什么公式吗? 已知f(x)=3^x,u,v属于R求证f(u)*f(v)=f(u+v) 帮我运行一下面程序把图回复给我.[u,v]=meshgrid(-pi:pi/100:pi); x=3*u.*sin(v); y=2*u.*cos(v); z=4*u.*u; mesh(x,y,z);是matlab 求u=(2-sinθ)/(1-cosθ)最小值