Operating the Calculator 188
Notes:
• When defining a variable that you want to retain, use more than one character in the
name. This prevents it from being deleted inadvertently by
1:Clear a–z.
• For information about checking and resetting memory or other system defaults, refer
to Memory and Variable Management.
Single-character variable names are often used in
symbolic calculations such as:
solve(a
¦x
2
+b¦x+c=0,x)
If any of the variables have already been assigned a
value, your calculation may produce misleading results.
To prevent this, you can select 1:Clear a–z before
beginning the calculation.
NewProb Places NewProb in the entry line. You must then press
¸ to execute the command.
NewProb performs a variety of operations that let you
begin a new problem from a cleared state without
resetting the memory:
• Clears all single-character variable names in the current
folder (same as
1:Clear a–z), unless the variables are
locked or archived.
• Turns off all functions and stat plots (
FnOff and
PlotsOff) in the current graphing mode.
•Performs
ClrDraw, ClrErr, ClrGraph, ClrHome,
ClrIO, and ClrTable.
Restore
custom
default
If a custom menu other than the default is in effect, this
lets you restore the default. Refer to the Calculator Home
Screen module for information on the custom menu.
Menu Item Description
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