# Frequently Used Maple Commands

Sample Command Result
evalf(expression,n) Evaluate floating point to n places. n is optional.
with(stats);
fit[leastsquare[[x,y]]]([[x1,...,xn],[xy,...,xn]]);
Linear regression
with(stats);
fit[leastsquare[[x,y],y=a*x2+b*x+c]]([[x1,...,xn],[xy,...,xn]]);
diff(f(x),x); Calculate f'(x)
integrate(f(x),x); Calculate the indefinite integral of f(x) with respect to x
integrate(f(x),x=a..b); Calculate the definite integral of f(x) with respect to x from a to b
plot(f(x),x); Plot the curve y=f(x)
plot(f(x),x=a..b); Plot the curve y=f(x) for x between a and b
plot(f(x),x=a..b,y=c..d); Plot the portion of the curve y=f(x) for x between a and b for which y is between c and d
plot([f(t),g(t),t=t1..t2]); Plot the parametric curve x=f(t), y=g(t) for t between t1 and t2
plot([f(t),g(t),t=t1..t2],a..b); Plot the portion of the parametric curve x=f(t), y=g(t) for t between t1 and t2 for which x is between a and b
plot([f(t),g(t),t=t1..t2],a..b,c..d); Plot the portion of the parametric curve x=f(t), y=g(t) for t between t1 and t2 for which x is between a and b and y is between c and d
plot(f(t),t=t1..t2,coords=polar); Plot the polar curve r=f(theta) for theta between t1 and t2
plot3d(f(x,y),x=a..b,y=c..d); Plot the curve z=f(x,y)
plot3d([f(u,v),g(u,v),h(u,v)], u=a..b, v=c..d); Plot the parametric surface x=f(u,v), y=g(u,v), z=h(u,v)
with(plots);
spacecurve([f(t), g(t), h(t)], t=a..b);
Plot the parametric curve x=f(t), y=g(t), z=h(t)