Thanks again for pointing that out. I fixed it, and when I debug printing $cos to the CLI, it prints out perfectly, but then below when it should print to the file, it is empty(it prints everything to the file perfectly, except the line with $cos(both the debug line, and the actual print to file are empty here)). So trying to figure out why that is happening since logically I can't explain to myself what would be clearing my variable(I am probably missing something simple, but after working on this for over a week, I can barely think straight).