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Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/Zsh/contrib.yo | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Doc/Zsh/contrib.yo b/Doc/Zsh/contrib.yo index 86a8b79c6..c104c594d 100644 --- a/Doc/Zsh/contrib.yo +++ b/Doc/Zsh/contrib.yo @@ -786,6 +786,42 @@ See `Accessing On-Line Help' ifzman(above)\ ifnzman((noderef(Utilities))). ) +findex(zcalc) +item(tt(zcalc) [ var(expression) ... ])( +A reasonably powerful calculator based on zsh's arithmetic evaluation +facility. The syntax is similar to that of formulae in most programming +languages; see +ifzman(the section `Arithmetic Evaluation' in zmanref(zshmisc))\ +ifnzman(noderef(Arithmetic Evaluation)) for details. The mathematical +library tt(zsh/mathfunc) will be loaded if it is available; see +ifzman(the section `The zsh/mathfunc Module' in zmanref(zshmodules))\ +ifnzman(noderef(The zsh/mathfunc Module)). The mathematical functions +correspond to the raw system libraries, so trigonometric functions are +evaluated using radians, and so on. + +Each line typed is evaluated as an expression. The prompt shows a number, +which corresponds to a positional parameter where the result of that +calculation is stored. For example, the result of the calculation on the +line preceeded by `tt(4> )' is available as tt($4). Full command line +editing, including the history of previous calculations, is available. +To exit, enter a blank line or type `tt(q)' on its own. + +If arguments are given to tt(zcalc) on start up, they are used to prime the +first few positional parameters. A visual indication of this is given when +the calculator starts. + +The constants tt(PI) (3.14159...) and tt(E) (2.71828...) are provided. +Parameter assignment is possible, but note that all parameters will be put +into the global namespace. + +An extra facility is provided for changing the default output base. Use, +for example, `tt([#16])' to display hexadecimal output preceeded by an +indication of the base, or `tt([##16])' just to display the raw number in +the given base. Bases themselves are always specified in decimal. +`tt([#])' restores the normal output format. + +See the comments in the function for a few extra tips. +) findex(zed) item(tt(zed) [ tt(-f) ] var(name))( This function uses the ZLE editor to edit a file or function. It rebinds |