GNU Emacs Calc 2.02 Manual
7.10 The Calc Mode Line
This section is a summary of all symbols that can appear on the
Calc mode line, the highlighted bar that appears under the Calc
stack window (or under an editing window in Embedded Mode).
The basic mode line format is:
 %%Calc: 12 Deg other modes (Calculator)

The `%%' is the Emacs symbol for "readonly"; it shows that
regular Emacs commands are not allowed to edit the stack buffer
as if it were text.
The word `Calc:' changes to `CalcEmbed:' if Embedded Mode
is enabled. The words after this describe the various Calc modes
that are in effect.
The first mode is always the current precision, an integer.
The second mode is always the angular mode, either Deg
,
Rad
, or Hms
.
Here is a complete list of the remaining symbols that can appear
on the mode line:
Alg
 Algebraic mode (m a; see section 4.5 Algebraic Entry).
Alg[(
 Incomplete algebraic mode (Cu m a).
Alg*
 Total algebraic mode (m t).
Symb
 Symbolic mode (m s; see section 7.4.5 Symbolic Mode).
Matrix
 Matrix mode (m v; see section 7.4.6 Matrix and Scalar Modes).
Matrixn
 Dimensioned matrix mode (Cu n m v).
Scalar
 Scalar mode (m v; see section 7.4.6 Matrix and Scalar Modes).
Polar
 Polar complex mode (m p; see section 7.4.2 Polar Mode).
Frac
 Fraction mode (m f; see section 7.4.3 Fraction Mode).
Inf
 Infinite mode (m i; see section 7.4.4 Infinite Mode).
+Inf
 Positive infinite mode (Cu 0 m i).
NoSimp
 Default simplifications off (m O; see section 7.5 Simplification Modes).
NumSimp
 Default simplifications for numeric arguments only (m N).
BinSimpw
 Binaryinteger simplification mode; word size w (m B, b w).
AlgSimp
 Algebraic simplification mode (m A).
ExtSimp
 Extended algebraic simplification mode (m E).
UnitSimp
 Units simplification mode (m U).
Bin
 Current radix is 2 (d 2; see section 7.7.1 Radix Modes).
Oct
 Current radix is 8 (d 8).
Hex
 Current radix is 16 (d 6).
Radixn
 Current radix is n (d r).
Zero
 Leading zeros (d z; see section 7.7.1 Radix Modes).
Big
 Big language mode (d B; see section 7.8.1 Normal Language Modes).
Flat
 Oneline normal language mode (d O).
Unform
 Unformatted language mode (d U).
C
 C language mode (d C; see section 7.8.2 C, FORTRAN, and Pascal Modes).
Pascal
 Pascal language mode (d P).
Fortran
 FORTRAN language mode (d F).
TeX
 TeX language mode (d T; see section 7.8.3 TeX Language Mode).
Eqn
 Eqn language mode (d E; see section 7.8.4 Eqn Language Mode).
Math
 Mathematica language mode (d M; see section 7.8.5 Mathematica Language Mode).
Maple
 Maple language mode (d W; see section 7.8.6 Maple Language Mode).
Normn
 Normal float mode with n digits (d n; see section 7.7.3 Float Formats).
Fixn
 Fixed point mode with n digits after the point (d f).
Sci
 Scientific notation mode (d s).
Scin
 Scientific notation with n digits (d s).
Eng
 Engineering notation mode (d e).
Engn
 Engineering notation with n digits (d e).
Leftn
 Leftjustified display indented by n (d <; see section 7.7.9 Justification).
Right
 Rightjustified display (d >).
Rightn
 Rightjustified display with width n (d >).
Center
 Centered display (d =).
Centern
 Centered display with center column n (d =).
Widn
 Line breaking with width n (d b; see section 7.8.1 Normal Language Modes).
Wide
 No line breaking (d b).
Break
 Selections show deep structure (j b; see section 11.1.1 Making Selections).
Save
 Record modes in `~/.emacs' (m R; see section 7.1 General Mode Commands).
Local
 Record modes in Embedded buffer (m R).
LocEdit
 Record modes as editingonly in Embedded buffer (m R).
LocPerm
 Record modes as permanentonly in Embedded buffer (m R).
Global
 Record modes as global in Embedded buffer (m R).
Manual
 Automatic recomputation turned off (m C; see section 7.4.7 Automatic Recomputation).
Graph
 GNUPLOT process is alive in background (see section 14. Graphics).
Sel
 Topofstack has a selection (Embedded only; see section 11.1.1 Making Selections).
Dirty
 The stack display may not be uptodate (see section 7.7 Display Modes).
Inv
 "Inverse" prefix was pressed (I; see section 7.3 Inverse and Hyperbolic Flags).
Hyp
 "Hyperbolic" prefix was pressed (H).
Keep
 "Keeparguments" prefix was pressed (K).
Narrow
 Stack is truncated (d t; see section 7.7.8 Truncating the Stack).
In addition, the symbols Active
and ~Active
can appear
as minor modes on an Embedded buffer's mode line. See section 17. Embedded Mode.