diff options
| author |  David Adam (zanchey) <zanchey@ucc.gu.uwa.edu.au> | 2013-05-12 15:56:01 +0800 |
|---|---|---|
| committer |  ridiculousfish <corydoras@ridiculousfish.com> | 2013-05-13 01:48:20 -0700 |
| commit | 1287b9d82382bf22e16edda67eae755f07397f2e (patch) | |
| tree | 811814b029d65ac11a193e616ca4a71d216dbe0c /doc_src/math.txt | |
| parent | 91aab03b90a6b583a3c0ecff5b015c6066d34f28 (diff) | |
Help cleanup
Large list of changes, including formatting and typos for most commands.
More substantive changes have been made to alias, bind, block, break,
builtin, case, cd, commandline, count, else, emit, fish_config, funced,
function, functions, history, math, mimedb, nextd, not, popd, prevd,
pushd, pwd, random, read, set, set_color, switch, test, trap, type,
ulimit, umask, and while.
Diffstat (limited to 'doc_src/math.txt')
| -rw-r--r-- | doc_src/math.txt | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/doc_src/math.txt b/doc_src/math.txt index 9455e0da..9904a2cc 100644 --- a/doc_src/math.txt +++ b/doc_src/math.txt @@ -6,10 +6,10 @@ \subsection math-description Description -math is used to perform mathematical calculations. It is only a very -thin wrapper for the bc program, that makes it possible to specify an +\c math is used to perform mathematical calculations. It is a very +thin wrapper for the bc program, which makes it possible to specify an expression from the command line without using non-standard extensions -or a pipeline. Simply use a command like <code>math 1+1</code>. +or a pipeline. For a description of the syntax supported by math, see the manual for the bc program. Keep in mind that parameter expansion takes place on @@ -18,3 +18,9 @@ order to perform calculations involving environment variables or the output of command substitutions, but it also means that parenthesis have to be escaped. +\subsection math-example Examples + +<code>math 1+1</code> outputs 2. + +<code>math $status-128</code> outputs the numerical exit status of the +last command minus 128. |