func, fun.
The purpose of the "function" command is to define a function with one or several variables.
minima: function "f; x; 2*x - 3*x^2" f(x)=-3*x^2+2*x minima: f(1/2) 1 – 4 minima: f((a+b)/3) -a^2 - 2·a·b - b^2 + 2·a + 2·b –––––––––––––––––––––––––––––– 3 minima: function "g;x;y; x^2 - x*y" g(x,y)=x^2-x*y minima: g(-6, t) 6·t + 36 minima: g(a, b) a^2 - a·b minima: function "d;a;h; (f(a+h)-f(a))/h" d(a,h)=(-6*a*h-3*h^2+2*h)/(h) minima: d(2, 1/100) -1003 ––––– 100 minima: n;x;f(f(f(x))) n(x)=-2187*x^8+5832*x^7-6804*x^6+4536*x^5-1890*x^4+504*x^3-84*x^2+8*x minima: n(x) -2187·x^8 + 5832·x^7 - 6804·x^6 + 4536·x^5 - 1890·x^4 + 504·x^3 - 84·x^2 + 8·x minima:
See commands "define" and "clear".