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problem with subroutines input/output - application: ODE solver
Another problem is that a namelist that contains all the parameters is not global available to the subroutines. I define and read the namelist in the main program as follows: REAL :: alpha, vmaxNP, vmaxPZ, Ks, mP, mZ, Phalf, Pzero INTEGER :: dt, tend NAMELIST /NPZNAME/ alpha, vmaxNP, vmaxPZ... -
problem with subroutines input/output - application: ODE solver
Dear Forum, I tried to use a Runge-Kutta method to solve a system of three ODEs (dNdt, dPdt, dZdt). The code is splitted in the main program, the ODE subroutine and a solver subroutine. I am very new to Fortran (90), therefore my problem could be very basic and resulting from misunderstanding...
