1. TABLE OF CONTENTS
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This is a JSIM adaptation of Gregory M. Faber's C-code detailed below. The JSim code has been processed to run under the XSIM interface. The C-code has been modified, converting many of the expressions into ordinary differential equations. Rapid equilibria have been transformed into "fast" ODE's in order to avoid iterative procedures, complex polynomial solutions, etc. This adaptation was done by Gary M. Raymond December 12, 2001. Original "C" code was from
Technique: C-code was basically adapted, block for block. C subroutines for currents were converted to ordinary differential equations where necessary. Stimulus was replaced by JSIM's external function (extern real st(t);). Information pertaining to step size was removed and replaced by JSIM's realDomain t. Recording of maximum excursions on a beat by beat basis was deleted. Double declarations (C construct) were replaced by real declarations (JSIM's MML construct which are double precision variables.) The C subroutines were converted to inline code and placed earlier in the model. Fast equilibria were were replaced by ODE's to avoid solving quadratic and cubic equations--the special innovation of the LR model.
Minor modifications were made in the code combining many variables, e.g. R*Temp/F has become the quantity RTOF (meaning R*T over F). The reciprocal of this quantity is FORT (meaning F over R*T). A four state model was incorporated to model Irelcicr replacing the formulation given in the Luo-Rudy model.
Copyright © 1999, National Simulation Resource, University of Washington.
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