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+--- Thread: YROOT(X) (/thread-18460.html)
YROOT(X) - lrdheat - 06-10-2022 06:40 PM
Wondering which is the first HP calculator to offer a primary root to y root (x) so as to avoid throwing an error in cases such as 3 root (-8), or producing an imaginary result?
RE: YROOT(X) - lrdheat - 06-10-2022 07:11 PM
Related…does any HP offer d/dx other than the Prime and HP 50?
RE: YROOT(X) - Joe Horn - 06-10-2022 11:24 PM
(06-10-2022 07:11 PM)lrdheat Wrote: Related…does any HP offer d/dx other than the Prime and HP 50?
All the RPL models, starting with the HP 28C, have offered d/dx.
RE: YROOT(X) - Didier Lachieze - 06-11-2022 05:26 AM
(06-10-2022 06:40 PM)lrdheat Wrote: Wondering which is the first HP calculator to offer a primary root to y root (x) so as to avoid throwing an error in cases such as 3 root (-8), or producing an imaginary result?
I would say the HP-48SX followed by the HP-32SII which both have a secondary X Root Y function on their keyboard and return -2 for 3 Root (-8).