On Apr 29, 2009, at 12:11 PM, Don Watson wrote:
> HI Skip,
>
> I see what you are saying. I assume you can't put constants in a
> tacit
> expression as follows:.
>
> d1 =: ([: +/([ - ]) ^ 2) ^ 0.5
>
> Why is this? I can understand why named nouns aren't allowed, but
> not
> why constants aren't.
Actually, they are: you just have to "bond" them to their operator for
later evaluation.
d1 =: ([: +/([ - ]) ^&2) ^&0.5
d1
┌
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─────────────┬─────────┐
│
┌
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────────────┐│┌─┬─┬───┐│
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[:│
┌
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┬
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──────┬───────┐│││^│&│0.5││
││
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┌
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┬
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┐
│
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┬
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┬─┐│┌─┬─┬─┐│││└─┴─┴───┘│
││ │││+│/│││[│-
│]│││^│&│2││││ │
││
│
│
└
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┴
─┘│└─┴─┴─┘│└─┴─┴─┘│││
│
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│
└
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──┴───────┴───────┘││
│
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┴
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