HP 49g

Command Reference: Part A (1.1) 1-51
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PREVPRIME(145)
5HVXOW 139
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PROPFRAC
7\SH &RPPDQG
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PROPFRAC((X^3+4)/X^2))
5HVXOW X+(4/X^2)
PSI
7\SH )XQFWLRQ
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