[etoys-notify] [JIRA] Updated: (SQ-1108) point-arithmetics: gold box should offer @-tile

[Scott Wallace (JIRA)]

     [ http://tracker.squeakland.org/browse/SQ-1108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Scott Wallace updated SQ-1108:
------------------------------

    Fix Version/s: future release
                       (was: etoys 5.0.1)

> point-arithmetics: gold box should offer @-tile
> -----------------------------------------------
>
>                 Key: SQ-1108
>                 URL: http://tracker.squeakland.org/browse/SQ-1108
>             Project: squeakland
>          Issue Type: Feature
>          Components: etoys
>            Reporter: Markus Schlager
>             Fix For: future release
>
>
> It would be nice to have an @-tile in order to compose a point out of two numbers.
> Example: I'd like to do a project about motion with wind and gravity and I'm glad that there are variables of type point which make things like
>     a <- F/m
>     delta_v <- a * delta_t
>     location <- location + (v * delta_t)
> easier since I don't have to write everything twice (x and y).
> On the other hand I may prefer variables of type number e.g. for gravity and (horicontal) wind velocity. Hence it would be great, if I could get things like
>    a <- wind_vel @ g

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