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|----+----+----+----+----+----2 |IGAM|BETA|IBET|ERF |BESJ|BESY| |----+----+----+----+----+----| |IMAG|CONJ| RE |ATN2|RAND|RAGN| |----+----+----+----+----+----| |GCD |FACT|DFCT|BNOM|PERM|NXTP| |----+----+----+----+----+----| |
This menu provides various operations from the f and k prefix keys.
IMAG multiplies the number on the stack by the imaginary number i = (0, 1).
RE extracts the real part a complex number. INV RE extracts the imaginary part.
RAND takes a number from the top of the stack and computes a random number greater than or equal to zero but less than that number. (See section 9.5 Random Numbers.) RAGN is the "random again" command; it computes another random number using the same limit as last time.
INV GCD computes the LCM (least common multiple) function.
INV FACT is the gamma function. gamma(x) = (x-1)!.
PERM is the number-of-permutations function, which is on the H k c key in normal Calc.
NXTP finds the next prime after a number. INV NXTP finds the previous prime.
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