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| author | Charles.Forsyth <devnull@localhost> | 2006-12-22 20:52:35 +0000 |
|---|---|---|
| committer | Charles.Forsyth <devnull@localhost> | 2006-12-22 20:52:35 +0000 |
| commit | 46439007cf417cbd9ac8049bb4122c890097a0fa (patch) | |
| tree | 6fdb25e5f3a2b6d5657eb23b35774b631d4d97e4 /man/1/mathcalc | |
| parent | 37da2899f40661e3e9631e497da8dc59b971cbd0 (diff) | |
20060303-partial
Diffstat (limited to 'man/1/mathcalc')
| -rw-r--r-- | man/1/mathcalc | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/man/1/mathcalc b/man/1/mathcalc new file mode 100644 index 00000000..913ec71e --- /dev/null +++ b/man/1/mathcalc @@ -0,0 +1,97 @@ +.TH MATHCALC 1 +.SH NAME +mathcalc \- interface to a TclLib calculator module +.SH SYNOPSIS +.B mathcalc +.SH DESCRIPTION +.I Mathcalc +reads simple expressions from the standard input, evaluates them, +and prints the results on the standard output. +It is a command line interface to a +.L TclLib +calculator module. +It prompts the user +.RL ( calc% ) +for each line, and +exits on end-of-file or on reading a line containing +.RB ` quit '. +.PP +Values are either integer or floating-point constants. +A floating-point constant has a decimal point, an exponent, or both. +Integer constants are taken as hexadecimal if they start +.BR 0x , +octal if they start with +.BR 0 , +and otherwise decimal. +.PP +Expressions are formed using the following C-like operators +and predefined functions, shown in order of decreasing priority: +.TP +.B - + ! ~ +unary: negate, plus (no-op); logical not and one's complement (integers only) +.TP +.B * / % +multiply and divide, integer remainder +.TP +.B + - +add, subtract +.TP +.B << >> +left shift, right shift (integers only) +.TP +.B < <= >= > +relational operators +.TP +.B == != +equality, inequality +.TP +.B & +bit-wise and (integer only) +.TP +.B ^ +bit-wise exclusive-OR (integer only) +.TP +.B | +bit-wise or (integer only) +.TP +.B && +logical and +.TP +.B || +logical or +.TP +.IB a ? b : c +conditional: if +.I a +is non-zero, the result is +.IR b , +otherwise +.I c +.PP +.I Mathcalc +provides the following mathematical functions: +.IP +.EX +.ta +\w'hypot\ \ 'u +abs ceil fmod sin +acos cos hypot sinh +asin cosh log sqrt +atan exp log10 tan +atan2 floor pow tanh +.EE +.PP +See +.IR math-elem (2) +for the usual definitions. +.SH SOURCE +.B /appl/cmd/mathcalc.b +.br +.B /appl/lib/tcl_calc.b +.SH DIAGNOSTICS +.TF ARGXXX +.TP +.B ARRG! +bad constant syntax +.TP +.B Error! +bad expression syntax, or any other error |