### Related

##### pi

1.4*(10^6)=1/((2*pi)*...

Calculate

eq1:x*4+y-2=y;

eq2:x+2=y;

linsolve([eq1,eq2],[x...

Calculate

draw2d (fill_color ...

Calculate

draw3d(explicit(x^2+y...

Calculate

##### sin

eq1:((sin(389.7-xcos(...

solvex;

Calculate

staircase(4*x*(1-x),0...

Calculate

p1 = [cos(%pi/3)*sin(...

p2 = [cos(%pi/3)*sin(...

Calculate

gl1:2*x+y-5*z=4;

gl2:3*x-2*y+2*z=1;

gl3:9*x-2*y-z=0;

Calculate

sin(%pi/12)+.1;

Calculate

##### pi-romberg-sin

romberg(romberg(sin(x...

Calculate

Run Example
```(%i1)load(draw);
(%o1)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i2)  scene1: gr2d(title="Ellipse",                             nticks=30,                             parametric(2*cos(t),5*sin(t),t,0,2*%pi));
(%o2) gr2d(title = Ellipse, nticks = 30,
parametric(2 cos(t), 5 sin(t), t, 0, 2 %pi))
(%i3)  scene2: gr2d(title="Triangle",                             polygon([4,5,7],[6,4,2]));
(%o3)        gr2d(title = Triangle, polygon([4, 5, 7], [6, 4, 2]))
(%i4)  draw(scene1, scene2, columns = 2);
(%o5)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i6)  draw(gr3d(explicit(x^2+y^2,x,-1,1,y,-1,1)));
plot draw3d(explicit(x^2+y^2,x,-1,1,y,-1,1));
(%o8)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i9)  draw(                  delay     = 100,                  file_name = "zzz",                  terminal  = 'animated_gif,                  gr2d(explicit(x^2,x,-1,1)),                  gr2d(explicit(x^3,x,-1,1)),                  gr2d(explicit(x^4,x,-1,1)));
plot```
Run Example
```load(draw);
(%o1)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i2)  scene1: gr2d(title="Ellipse",                             nticks=30,                             parametric(2*cos(t),5*sin(t),t,0,2*%pi));
(%o2) gr2d(title = Ellipse, nticks = 30,
parametric(2 cos(t), 5 sin(t), t, 0, 2 %pi))
(%i3)  scene2: gr2d(title="Triangle",                             polygon([4,5,7],[6,4,2]));
(%o3)        gr2d(title = Triangle, polygon([4, 5, 7], [6, 4, 2]))
(%i4)  draw(scene1, scene2);
(%o5)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i6)  draw(gr3d(explicit(x^2+y^2,x,-1,1,y,-1,1)));
plot draw3d(explicit(x^2+y^2,x,-1,1,y,-1,1));
(%o8)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i9)  draw(                  delay     = 100,                  file_name = "zzz",                  terminal  = 'animated_gif,                  gr2d(explicit(x^2,x,-1,1)),                  gr2d(explicit(x^3,x,-1,1)),                  gr2d(explicit(x^4,x,-1,1)));
plot```
Run Example
```load(draw);
(%o1)            /usr/share/maxima/5.21.1/share/draw/draw.lisp
(%i2)  scene1: gr2d(title="ellipse",                             nticks=30,                             parametric(2*cos(t),5*sin(t),t,0,2*%pi));
(%o2) gr2d(title = ellipse, nticks = 30,
parametric(2 cos(t), 5 sin(t), t, 0, 2 %pi))
(%i3)  scene2: gr2d(title="triangle",                             polygon([4,5,7],[6,4,2]));
(%o3)        gr2d(title = triangle, polygon([4, 5, 7], [6, 4, 2]))
(%i4)  draw(scene1, scene2, columns = 2);