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Fast, flexible, calculating from the command line

Posted by: Anonymous [ip: 81.241.251.49] on March 13, 2008 01:18 PM
My ultimate calc is irb ( interactive ruby) with auto-completion
* fully scriptable (it's ruby)
* simple syntax for math
* auto-completion
* readline support good for history navigation


# irb$ irb

irb(main):001:0> include Math

=> Object

irb(main):002:0> 2 ** 5

=> 32

irb(main):003:0> 111 /10

=> 11

irb(main):004:0> 111 /10.0

=> 11.1

irb(main):005:0> sin(0.5)

=> 0.479425538604203

irb(main):007:0> def f(x) sin(x) * cos(x) end

=> nil

irb(main):008:0> f 0.6

=> 0.466019542983613

irb(main):009:0> f(0.6)

=> 0.466019542983613

#

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