calc: Keypad Modes Menu
16.5 Modes Menu
===============
|----+----+----+----+----+----5
|FLT |FIX |SCI |ENG |GRP | |
|----+----+----+----+----+----|
|RAD |DEG |FRAC|POLR|SYMB|PREC|
|----+----+----+----+----+----|
|SWAP|RLL3|RLL4|OVER|STO |RCL |
|----+----+----+----+----+----|
The keys in this menu manipulate modes, variables, and the stack.
The <FLT>, <FIX>, <SCI>, and <ENG> keys select floating-point,
fixed-point, scientific, or engineering notation. <FIX> displays two
digits after the decimal by default; the others display full precision.
With the <INV> prefix, these keys pop a number-of-digits argument from
the stack.
The <GRP> key turns grouping of digits with commas on or off. ‘INV
GRP’ enables grouping to the right of the decimal point as well as to
the left.
The <RAD> and <DEG> keys switch between radians and degrees for
trigonometric functions.
The <FRAC> key turns Fraction mode on or off. This affects whether
commands like ‘/’ with integer arguments produce fractional or
floating-point results.
The <POLR> key turns Polar mode on or off, determining whether polar
or rectangular complex numbers are used by default.
The <SYMB> key turns Symbolic mode on or off, in which operations
that would produce inexact floating-point results are left unevaluated
as algebraic formulas.
The <PREC> key selects the current precision. Answer with the
keyboard or with the keypad digit and <ENTER> keys.
The <SWAP> key exchanges the top two stack elements. The <RLL3> key
rotates the top three stack elements upwards. The <RLL4> key rotates
the top four stack elements upwards. The <OVER> key duplicates the
second-to-top stack element.
The <STO> and <RCL> keys are analogous to ‘s t’ and ‘s r’ in regular
Calc. 
Store and Recall. Click the <STO> or <RCL> key, then one
of the ten digits. (Named variables are not available in Keypad mode.)
You can also use, for example, ‘STO + 3’ to add to register 3.
Info Catalog
calc: Keypad Vectors Menu
calc: Keypad Mode