splinefit(): returns a cubic spline function (see the following
function cspline).
splinefit(x, y): free cubic spline
splinefit(x, y, yp0, yp1): clamped boundary condition cubic spline
splinefit(x, y, type): cubic spline; type may be "cyclic",
"periodic" (same as "cyclic"), or "not-a-knot".
cspline(x): has two parameters xnodes and coeff.
Returns the evaluation of cubic spline evaluated at x.
This function is the return value of splinefit.
int(f, I): the numerical integral of function f over interval
I
dsolve(ode, I, y0): the numerical solution of the initial value problem
over the interval I defined by the ordinary differential equation
ode with initial value y0 at the start of I