HP 48G - Page 21

Most of the HP 48G/GX’s math commands are grouped
together under the key. Recall that with most
types of objects, you do arithmetic or other operations
just as you would with real-number arithmetic: First
you put the argument(s) on the stack, then you select
the operation; the result replaces the argument(s).
Here is a brief overview of the various command
groups (but for more details on a particular command,
see the Command Index on pages 41-77):
The vector commands (under {{3813) let you build,
calculate (and even change the coordinate system)
with 2D, 3D, or n-D vectors (syntax: [ 1).
The matrix commands (under [EEEIA) let you build
and calculate with nxm matrices (syntax: [[ 1),
including various factors, diagonals, least-square cal-
culations and Eigenvalues.
The listcommands (under [[MERM) offer element-by-
element procedures for summing, multiplying, sorting
and reversing the elements in a given list (list syntax:
£ 1). (See also list commands under (Prc) IMEN.)
The hyperbolic math commands (under I of-
fer the 3 basic hyperbolic trig functions and their in-
verses, plus high-precision versions of LN and EXP.
The real number commands (under [XETM) include
percentage and modulo calculations and commands
that extract portions of real values (rounding, abso-
lute value, integer and fractional portions, etc.).
The binary integer commands (under [EFE) allow
you to build, alter, and do logical calculations with bi-
nary integers (syntax: #...)—and choose the format
and extent of their display.
The probability commands (under [ calculate
permutations, combinations, factorials, pseudo-ran-
dom numbers, and various probability distributions.
The fast Fourier transform (llZ3ll) commands do
just that—compute fast Fourier transforms.
The complex numbercommands (under [Mg[J8) let
you build, take apart, conjugate and negate complex
numbers (syntax: ( , ).
The constants menu (under [RTEN) offers typing
aids for entering the various values and names of the
machine’s built-in constants (2, i, 1, MAXE and MINR).
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