What's wrong with FORTRAN?
Or BASIC, which is what I used back in the day of handing the High Priest your little box of punch cards and hoping you'd get your run back by the end of the day. Eventually, I graduated to punch tape, which I could feed (laboriously) into my very own teletype terminal.
I have no problem with using the BASIC-style ASCII formatting for almost all formulas. If you're getting into integrals and things like that, you've got another problem.