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Original Message (ID '159093') By Forum Moderator:
> Should there be space between {...}, and psi? doesn't matter >Should I write Expand[5 t] or Expand[5t]? doesn't matter. Putting the number first is unambiguously multiplication. > What is /.? shorthand for the ReplaceAll function. The arrow a little to the right is shorthand for the Rule function. These are very common and useful in Mathematica programming. Places to start learning Mathematica syntax: I am pleased you are interested in the quintic pages. That was a big deal when it came out.