Hello everyone!, I have just recently started to use freefem3d to simulate mass diffusion inside a certain 3d shape. My question here is that i need to define a step function to set the initial conditions for the concentration. I would need a function that says: for x<= x1 conc(x,y,z)=3(for example), and for x>x1 conc(x,y,z)=0. And i can not figure out a way to do it.
In freefem++ is possible to define such a function by suitable if clauses inside a function statement since the return instruction gives back the result of the call to the function. I am using the distributed binary for Macintosh. Thank you very much! Emilio -- ############################################### Dr. Emilio Melero García Laboratorio de Estudios Cristalográficos, IACT Instituto de parasitología Lopez Neyra, P.T. Ciencias de la Salud, E-18100 Armilla, Granada, España Correo elec. :emilio_arroba_lec_._csic_._es Tfno: 958181621, lab 107 ###############################################
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