Re: Inviting to comment on Cocoa categories
Re: Inviting to comment on Cocoa categories
- Subject: Re: Inviting to comment on Cocoa categories
- From: "James W. Walker" <email@hidden>
- Date: Mon, 10 Nov 2008 09:26:37 -0800
On Nov 10, 2008, at 2:40 AM, Kyle Sluder wrote:
If I remember correctly, matrix
multiplication does not distribute over matrix addition, and since a
transformation matrix stack is essentially a product of sums, the API
designers might, as you suggest, have simply left the functionality
out for the sake of clarity.
For the record, you remember wrong. Matrix multiplication is not
commutative, but the other basic algebraic laws of multiplication and
addition work.Attachment:
smime.p7s
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