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Getting started 1-7
Math keys HOME (>+20(@) is the place to do calculations.
Keyboard keys. The most common operations are available
from the keyboard, such as the arithmetic (like >@) and
trigonometric (like >6,1@) functions. Press >(17(5@ to
complete the operation: >6+,)7@√ 256>(17(5@ displays 16.
.
MATH menu. Press >0$7+@
to open the MATH menu. The
MATH menu is a
comprehensive list of math
functions that do not appear on
the keyboard. It also includes
categories for all other functions and constants. The functions
are grouped by category, ranging in alphabetical order from
Calculus to Trigonometry.
– The arrow keys scroll through the list (*e,, *k,) and
move from the category list in the left column to the
item list in the right column (*>,, *A,).
– Press
to insert the selected command onto the edit
line.
– Press
to dismiss the MATH menu without
selecting a command.
– Pressing
displays the list of Program
Constants. You can use these in programs that you
develop.
– Pressing
takes you to the beginning of the
MATH menu.
See “Math functions by category” on page 10-3 for details of
the math functions.
HINT
When using the MATH menu, or any menu on the HP 39G/
40G, pressing an alpha key takes you straight to the first menu
option beginning with that alpha character. With this method,
you do not need to press >$/3+$@ first. Just press the key that
corresponds to the command’s beginning alpha character.
Program
commands
Pressing >6+,)7@CMDS displays the list of Program Commands.
See “Programming commands” on page 15-14.
Inactive keys If you press a key that does not operate in the current context,
a warning symbol like this appears. There is no beep.
!