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plot3d
plot3d(100-1/(2+r^1.7), [r,0,11], [th,0,2*%pi], [grid,20,40],                 [transform_xy, polar_to_xy]);

plot3d(100-1/(2+r^1.7...

Calculate

plot3d-sqrt
plot3d((r-1)^2,[x,-1,1],[y,-1,1]);

r: sqrt(x^2+y^2);

plot3d((r-1)^2,[x,-1,...

Calculate

plot3d
plot3d([x^4+y^4,[x,-1,1],[y,-5,5]]);

plot3d([x^4+y^4,[x,-1...

Calculate

plot3d-sqrt
plot3d(f(x,y), [x,-15,15], [y,-15,15], [z, -1, 25]);

f(x,y):= sqrt(x^2+y^2);

plot3d(f(x,y), [x,-15...

Calculate

plot3d
plot3d(x^2+y^2,[x,-10,10],[y,-10,10],[gnuplot_preamble,"set view 45"], [palette, false], [color, black]);

plot3d(x^2+y^2,[x,-10...

Calculate

plot3d-sqrt
plot3d(-sqrt(-(4*y^2)/3-4*x^2+4),[x,-2,2],[y,-2,2]);

z1(x,y)=-sqrt(-(c*y^2...

z2(x,y)=sqrt(-(c*y^2)...

plot3d(-sqrt(-(4*y^2)...

Calculate

plot3d
plot3d(f(x,y), [x,1,2], [y,1,2]);

f(x,y):= x*y + x^2*y^2;

plot3d(f(x,y), [x,1,2...

Calculate

plot3d
plot3d(1/(1+r^0.5), [r,0,11], [th,0,2*%pi], [grid,20,40],                 [transform_xy, polar_to_xy]);

plot3d(1/(1+r^0.5), [...

Calculate

plot3d
plot3d([[(0.9263*x^2-y^2)/(0.9999476*10^9),[x,-10000,10000],[y,-10000,10000]]]);

plot3d([[(0.9263*x^2-...

Calculate

plot3d
plot3d(2*x^2+3*y^2,[x,-10,10],[y,-10,10]);

2*x^2+3*y^2;

plot3d(2*x^2+3*y^2,[x...

Calculate

plot3d

Run Example
(%i1)x(u,v):=cos(u);
(%o1)                          x(u, v) := cos(u)
(%i2) y(u,v):=v;
(%o2)                            y(u, v) := v
(%i3) z(u,v):=v^2+sin(u);
                                        2
(%o3)                       z(u, v) := v  + sin(u)
(%i4) plot3d([x(u,v),y(u,v),z(u,v)],[u,-3,3],[v,-3,3]);
plotplot3d([x(u,v),y(u,v),z(u,v)],[u,-3,3],[v,-3,3]);
Run Example
f(x,y) := sin(x) + 2*cos (y);
(%o1)                    f(x, y) := sin(x) + 2 cos(y)
(%i2) plot3d (f(x,y),[x,-5,5],[y,-3,3]);
plotplot3d (f(x,y),[x,-5,5],[y,-3,3]);
Run Example
plot3d([ [(x/2*log(x))/(y^2*x*log(x/y)),[x,1E6,1E8],[y,2,30]] ]);
plotplot3d([ [(x/2*log(x))/(y^2*x*log(x/y)),[x,1E6,1E8],[y,2,30]] ]);

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