Online Algebra Calculator
Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
Function: cos (<x>) - Cosine.
![Cos Example x(u,v):=sin(u)*cos(v);
y(u,v):=sin(u)*sin(v);
z(u,v):=cos(u);
plot3d([x(u,v),y(u,v),z(u,v)], [u,0,2*%pi], [v,0,2*%pi], [grid,60,60]);](http://maxima-online.org//plot.html?g=p-1699242685.png&t=img&db=r-1001232415)
There are also some inexact matches for cos. Try ?? cos to see them.
(%o1) true (%i2)