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Topic: There is no such thing as a PIECE-WISE function only your brains
are in pieces!

Replies: 3   Last Post: Nov 12, 2017 9:11 AM

 Messages: [ Previous | Next ]
 bursejan@gmail.com Posts: 5,511 Registered: 9/25/16
Re: There is no such thing as a PIECE-WISE function only your brains
are in pieces!

Posted: Nov 11, 2017 8:30 AM

Well a rule can come as:

sin(x)/x = "/"
/ \
"sin" x
/
x

Or as follows:

if(x<2,-x,x) = "if"
/ | \
"<" "-" x
/ \ |
x 2 x

if-then-else is also a rule, like any other operation.

Am Samstag, 11. November 2017 14:25:34 UTC+1 schrieb John Gabriel:
> A function is defined to be ONE relation, not a thousand.
>
> A relation is a mapping or a rule.
>
> The first idiot who came up with the crap of a piece-wise function should have lost his job. It is a bogus concept.
>
> By its very definition, calculus only works given ONE continuous and smooth function. The moment you introduce monkey business to help you teach your shit of limits, differentiability and the ubiquitous crap such as abs(x) not being differentiable at x=0, then you are no longer dealing with calculus, but something else ... shit.

Date Subject Author
11/11/17 bursejan@gmail.com
11/11/17 bursejan@gmail.com
11/12/17 Dan Christensen