Difference between revisions of "Physical units/CalDims"
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The motivation for writing CalDims was to have an easy to use calculation tool that has support for units. |
The motivation for writing CalDims was to have an easy to use calculation tool that has support for units. |
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| − | ==The calculator's features== |
+ | == The calculator's features == |
* Support for user defined basic units and derrived units |
* Support for user defined basic units and derrived units |
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* easy unit-conversion |
* easy unit-conversion |
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| + | == Example session == |
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| − | ==Planned features for future releases== |
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| + | <haskell> |
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| − | * More datatypes (boolean, string) |
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| + | > # A bird is moving 1 meter per second, how far will it be in 2 hours? |
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| − | * a worksheet GUI |
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| + | > 1m/s * 2h | m |
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| − | * Undo/Redo |
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| + | 7200 m |
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| + | > # A 60 Watt electric light is burning 2 hours a day. How much energy is consumed in one week? |
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| + | > 60 W * 2 h / d * 7 d | J |
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| + | 3024000 J |
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| + | > # What's that in Watt hours? |
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| + | > 60 W * 2 h / d * 7 d | W h |
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| + | 840 W h |
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| + | > #How much is it in a year (we derrive `year` first) |
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| + | > year := 265 d |
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| + | ok. |
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| + | > 60 W * 2 h / d * 1 year | W h |
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| + | 31799.999999999996 W h |
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| + | > # Bits and bytes are not defined. We do so: |
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| + | > \u bit |
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| + | ok, but an object has changed |
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| + | > byte := 8 bit |
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| + | ok, but an object has changed |
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| + | > kbyte := 1024 byte |
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| + | ok. |
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| + | > mbyte := 1024 kbyte |
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| + | ok. |
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| + | > 2 mbyte | - |
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| + | 16777216 bit |
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| + | > 2 mbyte | kbyte |
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| + | 2048 kbyte |
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| + | </haskell> |
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| ⚫ | |||
| ⚫ | |||
| − | ==Releases== |
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| + | darcs http://tel.netbeisser.de/darcs/CalDimsApps |
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| − | Current release is 1.0 rc1. It fixes some bugs that are in (deprecated) 0.9 |
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| ⚫ | |||
| − | |||
| − | http://m13s07.vlinux.de/releases/CalDims/1.0/CalDims-1.0rc1.tar.gz |
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| − | |||
| − | Binary for Linux x86-32: |
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| − | |||
| − | http://m13s07.vlinux.de/releases/CalDims/1.0/caldims |
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| − | |||
| − | ==Contact== |
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| − | |||
| − | The darcs repository is at |
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| − | |||
| ⚫ | |||
[[Category:Applications]] |
[[Category:Applications]] |
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Revision as of 11:41, 24 September 2007
The motivation for writing CalDims was to have an 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
- work sheets can be modified/saved via shell
- (1/3)*3 == 1 (No rounding errors)
- 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