By the way Does any one knows why gt(a,b) = 1 when a > b And ge(a,b) = 1 when b>= a ? Louis Lamarche De : trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] De la part de Mehdi Shahrestani Dear Rambod Just go to Trnsys manual volume 6 page 25. You can find all of them in that page. Moreover, you can find them as a FORTRAN functions in each FORTRAN book. Anyway, if you do not have that page let me know I am online tonight. Nice to hearing you Mehdi From: trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] On Behalf Of Rambod Rayegan Dear TRNSYS users, I don't know how can I find the function of each botton (like GT, LT, LE, AE, NE, STEP, ...) in the equation tool of the TRNSYS. Is there any file or section in the TRNSYS documentation files that explain equation tool functions? Thank you, Rambod |