Finding small equation solutions with great precision with Solvesys and Longfloat

[John Keith]

Like most HP 50 applications (and built-in functions), SolveSys works with 12-digit floating-point numbers. LongFloat defines a new data type which is not compatible with existing commands and functions. This is why LongFloat has its own functions (FDIV, FEXP, FPI, etc.).

I believe you will have to write your own user programs using LongFloat functions . Since SolveSys is open source, you can read the source code and see how the program works. This does not sound like an easy undertaking to me though.

Also, since LongFloat is quite slow, I would expect such a user program to be very slow indeed.

John

Edit: another possibility is to use exact rational arithmetic, i.e. exact mode. This may not be suitable for your intended uses but exact integers tend to be significantly faster than LongFloats.