On Thu, Apr 28, 2011 at 07:46, Martin <

mbrrtt@...> wrote:

> Do you really think that 'n % 1' is 'clever code', while 'n -

> Math.floor(n)' is not?

>

Yes. The meaning of 'n - Math.floor(n)' is obvious. The meaning of 'n % 1'

is not obvious, so much so that at least one person on this mailing list

misunderstood it.

> Sure, the operator '%' doesn't wear its meaning on its face. It's not

> standard mathematical notation; you have to look it up the first time you

> see it, in a book or in the spec. But did you know what 'x || y' or 'x ? y :

> z' meant the first time you saw them?

>

The problem isn't the meaning of '%'; I knew that % was remainder/modulo.

The problem is that extending modulo to floating point gives you at least

three different possible behaviors, as

http://en.wikipedia.org/wiki/Modulo_operation points out, and people's

expectations aren't necessarily met by those extended definitions.

mathew

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