Syntax

   [v, f] = taufred(step, x, fun, Kxt)

Description

   Evaluates the Fredholm integral term from an approximated function.

Input

   step = evaluation step (double).
   x    = independent tau variable (itau object).
   fun  = function f(x) (char or double vector).
   Kxt  = function F(x,t) (char).

Output

   v    = v(x).
   f    = coefficients for the approximation int_a^b(fun(t)*K(x, t))dt.

Examples

   x = itau('LegendreP', [0 1], 5);
   [v, f] = taufred(0.1, x, ''x^2-3*x+1'', 'cos(x+t)'); or:
   x = itau('LegendreP', [0 1], 5);
   [v, f] = taufred(0.1, x, [-1/6 -1 1/6]', 'cos(x+t)');
   In the first example the function is
   interpolated by orthogonal basis whereas in the second the coefficients
   are already provided.

See also

  tauvolt, tauint, taudiff.