Hi! Anyone familiar with calling Matlab from Trnsys? I am using Solar collector example as base m file and have followed the steps and have my own inputs, time steps and so on. Now im trying to solve a number of equations with finite difference method and needs to define time loop j for iterations. How do I code that correctly? I tried set J=nStep but got error that nStep wasnt defined. This is just an example: Best regards/ Erik |