HP 40gs - Manual (Page 157)

Using mathematical functions 13-3
Functions common to keyboard and menus
These functions are common to the keyboard and MATH
menu.
Keyboard functions
The most frequently used functions are available directly
from the keyboard. Many of the keyboard functions also
accept complex numbers as arguments.
π For a description, see “p” on
page 13-8.
ARG
For a description, see “ARG” on
page 13-7.
For a description, see “ ” on
page 11-7.
AND
For a description, see “AND” on
page 13-19.
! For a description, see
“COMB(5,2) returns 10. That is,
there are ten different ways that
five things can be combined two
at a time.!” on page 13-12.
∑
For a description, see “S” on
page 13-11.
EEX
For a description, see “Scientific
notation (powers of 10)” on
page 1-20.
For a description, see “ ” on
page 11-7.
The multiplicative inverse
function finds the inverse of a
square matrix, and the
multiplicative inverse of a real or
complex number. Also works on
a list containing only these object
types.
∂
∫ ∫
x
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