Difference between revisions of "Physical units/CalDims"
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| − | + | CalDims is a flexible and easy to use calculation tool that has support for units. |
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== The calculator's features == |
== The calculator's features == |
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* Support for user defined basic units and derrived units |
* Support for user defined basic units and derrived units |
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* user defined functions |
* user defined functions |
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| − | * work sheets can be modified/saved via shell |
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| − | * (1/3)*3 == 1 (No rounding errors) |
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* built-in feature to simplify units |
* built-in feature to simplify units |
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* easy unit-conversion |
* easy unit-conversion |
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</haskell> |
</haskell> |
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== Sources == |
== Sources == |
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| + | Sources are availables at HackageDB: |
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| − | |||
| + | http://hackage.haskell.org/cgi-bin/hackage-scripts/package/caldims |
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| − | darcs http://tel.netbeisser.de/darcs/CalDims |
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| − | |||
| − | darcs http://tel.netbeisser.de/darcs/CalDimsApps |
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Revision as of 12:23, 16 December 2008
CalDims is a flexible and easy to use calculation tool that has support for units.
The calculator's features
- Support for user defined basic units and derrived units
- user defined functions
- built-in feature to simplify units
- easy unit-conversion
Example session
> # A bird is moving 1 meter per second, how far will it be in 2 hours?
> 1m/s * 2h | m
7200 m
> # A 60 Watt electric light is burning 2 hours a day. How much energy is consumed in one week?
> 60 W * 2 h / d * 7 d | J
3024000 J
> # What's that in Watt hours?
> 60 W * 2 h / d * 7 d | W h
840 W h
> #How much is it in a year (we derrive `year` first)
> year := 265 d
ok.
> 60 W * 2 h / d * 1 year | W h
31799.999999999996 W h
> # Bits and bytes are not defined. We do so:
> \u bit
ok, but an object has changed
> byte := 8 bit
ok, but an object has changed
> kbyte := 1024 byte
ok.
> mbyte := 1024 kbyte
ok.
> 2 mbyte | -
16777216 bit
> 2 mbyte | kbyte
2048 kbyte
Sources
Sources are availables at HackageDB: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/caldims