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(11C) Gaussian integration
01-14-2014, 02:27 PM
Post: #4
RE: Gaussian integration for the HP-11C
(01-14-2014 01:40 PM)Namir Wrote:  Is it a Gaussian Quadrature???
Sure.
Quote:It delivers exact results, even using just 1 subinterval, for f(x) being a polynomial of degrees up to (and including) 5th, while evaluating f(x) just 3 times per subinterval.
Thus I assume that 3 points are used: 0, \(\pm\sqrt{\frac{3}{5}}\). The weights are \(\frac{8}{9}\) and \(\frac{5}{9}\).
Quote:If so, I don't see where the quadrature weights are stored!

10 .6
12 SQRT
13 *

22 5
23 *

34 8
35 *


Quote:Do you have a link to the algorithm?
Gaussian quadrature

HTH
Thomas
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Messages In This Thread
(11C) Gaussian integration - Thomas Klemm - 01-09-2014, 09:38 PM
RE: Gaussian integration for the HP-11C - Thomas Klemm - 01-14-2014 02:27 PM



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