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## Main Question or Discussion Point

I was wondering if it's possible to use the TI89 Titanium's built-in solver with programs. More specifically, for compressible flow problems, I'd like to calculate mach number based on area ratio, specify whether the flow is subsonic or supersonic, then do something with the corresponding value.

Sadly, the "solve(" function returns text which is useless for manipulating the value (for example, taking the minimum)

Thanks in advance for any help.

Sadly, the "solve(" function returns text which is useless for manipulating the value (for example, taking the minimum)

Thanks in advance for any help.