请matlab高手来帮忙 自变量x取值范围[60°,130°]， y=arccos((129.6+188.16cos(x)-155.82sin(x))/250.9)

Question

z=2arctan((-6.5sin(y)+14.7sin(x)+4.370746)/(12.23271-6.5cos(y)+14.7cos(x)))
t=19.3cos(z)+1.6746(19.3cos(z)-14.7cos(x)+7.06729)
求t-x变化曲线
如果z=2arctan((-6.5sin(y-z)+14.7sin(x)+4.370746)/(12.23271-6.5cos(y-z)+14.7cos(x)))
应该怎么做呢？

Answer 1

x=60:130;

x=x/180*pi;

y=acos((129.6+188.16.*cos(x)-155.82.*sin(x))/250.9);

z=2*atan((-6.5.*sin(y)+14.7.*sin(x)+4.370746)/(12.23271-6.5.*cos(y)+14.7.*cos(x)));

 t=19.3.*cos(z)+1.6746.*(19.3.*cos(z)-14.7.*cos(x)+7.06729);

plot(x,t)

Answer 2

x=pi/3:0.01:pi*13/18;
y=acos((129.6+188.16.*cos(x)-15.82.*sin(x))/250.9);
z=2.*atan((-6.5.*sin(y))+14.7.*sin(x)+4.370746/(12.23271-6.5.*cos(y)+14.7.*cos(x)));
t=19.3.*cos(z)+1.6746.*(19.3.*cos(z)-14.7.*cos(x)+7.06729);
plot(x,t)
title(‘t-x曲线’)；
xlabel('x');
ylabel('t');

Answer 3

x=60:1:130;
y=acos((129.6+188.16*cosd(x)-155.82*sind(x))/250.9);
z=2*atan((-6.5*sin(y)+14.7*sind(x)+4.370746)./(12.23271-6.5*cos(y)+14.7*cosd(x)));
t=19.3*cos(z)+1.6746*(19.3*cos(z)-14.7*cosd(x)+7.06729);
plot(x,t)
title('t-x变化曲线');ylabel('t');xlabel('x / ^0');

Answer 4

直接用软件啊。。