Math is a command-line calculator, similar to bc. It also includes a lot of extra functionality for hashing files and manipulating strings.
Click here to download the zip file containing binaries for the following platforms:
> x = 2 ans = 2 > x+1 ans = 3 > ans*5 ans = 15 > sqrt(4^2) ans = 4
> hex 1234 4d2 > unhex 4d2 1234
> md5 empty.txt d41d8cd98f00b204e9800998ecf8427e > sha1 empty.txt da39a3ee5e6b4b0d3255bfef95601890afd80709 > sha256 empty.txt e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
> time ans = 1515480324 > gmtime 2018-01-09 06:45:29 AM Tue > localtime 2018-01-09 01:45:32 AM Tue > gmtime 0 1970-01-01 00:00:00 AM Thu
> base64 hello
aGVsbG8=
> unbase64 aGVsbG8=
hello
> url_encode { asdf: 1234 }
%7B%20asdf:%201234%20%7D
> url_decode %7B%20asdf:%201234%20%7D
{ asdf: 1234 }
> comma 1234567890 1,234,567,890 > uuid f27f4c4b-c3f4-7dfb-4205-206383c0685d
COMMANDS: these must be typed exactly with no leading or trailing characters help - shows this message debug on - turns debug on debug off - turns debug off exit - exits the program quit - exits the program clear - clears the screen reset - reset all variables *.frm - run a formula file formula - view help text about formula files hex [n] - convert n to hex unhex [n] - convert n to decimal md5|sha1|sha256 [file] - compute the hex digest for a file escape [file] - C-string escape a file base64|unbase64 [file|string] - base64 encode/decode a file or string url_encode|url_decode [file|string] -url encode/decode a file or string comma [n] - add commas to a number time - get seconds since unix epoch localtime [t] -format time to local time string gmtime [t] -format time to UTC time string uuid - generate a UUID bench - run a simple benchmark FUNCTIONS: these all take a single parameter abs() acos() asin() atan() cos() exp() ln() log() sin() sqrt() tan() OPERATORS: in order of precedence ! ^ * / % + - = The factorial operator (!) takes two operands and a!b is equivalent to a!/b! in traditional notation. Also, the variables 'pi', 'e', and 'ans' are pre-defined. The variable 'ans' always corresponds to the last answer.
Formula files are files with the extension ".frm" and are in the same directory
in which you are running math. They generally consist of several lines of
mathematical expressions, except they can contain several special lines, based
on what the line begins with:
# - Comments. The line is ignored.
prompt [variable] - The evaluation of the formula stops to receive
a number from standard input, which is then
stored in [variable].
show [variable] - Prints a line like "[variable] = [value]".
print [text] - Prints [text]. Variables may be included within
[text] by escaping them with the an ampersand ('&').
For example:
print x = &x
is equivalent to:
show x
Formula files can be run by simply specifying the filename.
For example:
pythagoras.frm
will look for a file called pythagoras.frm in the same directory, and run it.
Formula files can also take arguments which bind to "prompt" statements
within the file itself. This allows you to run a formula and fill in the
prompts in a concise way.
For example, assuming that "pythagoras.frm" looks like:
prompt a
prompt b
c = sqrt(a^2+b^2)
show c
Running this:
pythagoras.frm 1 2
will allow you to skip the prompts and assign 1 to a and 2 to b.
Any missing arguments are still prompted. Any extra arguments are ignored.
I'm not too familiar with bc, but in general this has more features: it has commands to convert timestamps, hash files, etc.
In general it's less typing to do basic things.
No. All numbers are double-precision floating points (64 bits).