finite element derivative下载

weixin_39821260 2021-01-27 11:00:41

an introduction about finite element derivative.
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an introduction about finite element derivative.

In this article, we consider the finite element method (FEM) for two-dimensional linear time-fractional Tricomi-type equations, which is obtained from the standard two-dimensional linear Tricomi-type equation by replacing the first-order time derivative with a fractional derivative (of order , with 1 << 2 ). The method is based on finite element method for space and finite difference method for time. We prove that the method is unconditionally stable, and the error estimate is presented. The com

定量分析数值方法，Computational-Methods-for-Quantitative-Finance-Finite-Element-Methods-for-Derivative-Pricing，资源来自互联网

C----------------------------------------------------------------------- program runocc C----------------------------------------------------------------------- c C OCCAM 2.0: Steven Constable IGPP/SIO La Jolla CA 92093-0225 c Program Revision 2.01, 13 Jan 1993 c c runocc is the calling program for OCCAM v2.0. C C REFERENCES: CONSTABLE, PARKER & CONSTABLE, 1987: GEOPHYSICS 52, 289-300. C DEGROOT-HEDLIN & CONSTABLE, 1990: GEOPHYSICS 55, 1613-1624. C CONSTABLE, 1991: GEOPHYS. J. INT. 106, 387-388. C CONSTABLE, 1992: OCCAM DISTRIBUTION NOTES. C C REVISION HISTORY: C MARCH 1986, (VERSION 1.2) C OCTOBER 1987, (VERSION 1.3) C AUGUST 1988, (VERSION 1.4) C JANUARY 1989 (WITH THANKS TO C.DEGROOT-HEDLIN), (VERSION 1.5) C SEPTEMBER 1989, (VERSION 1.5.2) C APRIL 1992 (MORE THANKS TO CATHERINE AND ALSO WSE) (VERSION 2.0) C C IF YOU OBTAIN THIS CODE FROM A THIRD PERSON, PLEASE SEND YOUR NAME AND ADDRESS C TO S. CONSTABLE. YOU WILL THEN RECEIVE UPDATES, NEWS ON BUGS, ETC. C C VERSION 2.0 IS A RE-WRITE TO MAKE OCCAM INDEPENDENT OF THE DIMENSIONALITY C OF THE FORWARD PROBLEM, AND TO MAKE MAXIMUM USE OF DYNAMIC MEMORY ALLOCATION, C AS THE ARRAY SIZES FOR THE 2D PROBLEM ARE NOW GETTING TOO LARGE FOR COMFORT. C INCLUDE FILES ARE NOW USED TO STREAMLINE CHANGES OF DIMENSION. C IMPLICIT DOUBLE PRECISION HAS BEEN REMOVED, AGAIN FOR STORAGE REASONS. C CALLING PROGRAM IS NOW AN INTEGRAL PART OF THE PACKAGE AS ALL THE MODEL- C DEPENDENT STUFF HAS BEEN SPUN OFF. C C IF YOU OBTAIN THIS CODE FROM A THIRD PERSON, PLEASE SEND YOUR NAME AND ADDRESS C TO S. CONSTABLE. YOU WILL THEN RECEIVE UPDATES, NEWS ON BUGS, ETC. C C SUBROUTINES WHICH MUST BE SUPPLIED BY THE USER: C C FORMOD(NP,ND,PM,DP,DM), COMPUTES THE FORWARD FUNCTION FOR MODEL PM() AT C THE DATA PARAMETERS DP() AN

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