The symb/graph menu – HP 48gII User Manual
Page 433

Page 12-52
ALGEBRA..
‚× (the 4 key)
Ch. 5
ARITHMETIC..
„Þ (the 1 key)
Ch. 5
CALCULUS..
„Ö (the 4 key)
Ch. 13
SOLVER..
„Î (the 7 key)
Ch. 6
TRIGONOMETRIC..
‚Ñ (the 8 key)
Ch. 5
EXP&LN..
„Ð (the 8 key)
Ch. 5
The SYMB/GRAPH menu
The GRAPH sub-menu within the SYMB menu includes the following functions:
DEFINE: same as the keystroke sequence
„à (the 2 key)
GROBADD: pastes two GROBs first over the second (See Chapter 22)
PLOT(function): plots a function, similar to
„ô
PLOTADD(function): adds this function to the list of functions to plot, similar to
„ô
Plot setup..: same as
„ô
SIGNTAB(function): sign table of given function showing intervals of positive
and negative variation, zero points and infinite asymptotes
TABVAL: table of values for a function
TABVAR: variation table of a function
Examples of some of these functions are provided next.
PLOT(X^2-1) is similar to
„ô with EQ: X^2 -1. Using @ERASE @DRAW
produces the plot: