What ``undefined'' means

There are only two cases: defined here (in some document) and defined elsewhere. ``Undefined'' means defined somewhere else.

Here are some ``red pills'' for domain theorists and other ``computer pseudoscientists'', respectively from the Algol 60, Algol 68, and PL/I definitions.

Whenever the precision of arithmetic is stated as being in general not specified, or the outcome of a certain process is left undefined or said to be undefined, this is to be interpreted in the sense that a program only fully defines a computational process if the accompanying information specifies the precision assumed, the kind of arithmetic assumed, and the course of action to be taken in all such cases as may occur during the execution of the computation.

If something is left "undefined" or is said to be "undefined", then this means that it is not defined by this Report alone and that, for its definition, information from outside this Report has to be taken into account.

The standard definition of PL/I for a particular implementation is completed by defining (not necessarily in the style of this document) the implementation-defined features listed in Section 1.2.2, together with the representation of a program-run's elements (<symbol-list>s, <entry-value>, and <dataset-list>) in the implementation's operating environment. With this information available, the conceptual PL/I machine gives one or more interpretations to a program.

``Undefined'' for a programming language means not defined in this document, but somewhere else. You can't get much clearer than that.

This means that the action taken for division by zero is defined. The action taken when the program runs out of memory is defined. Nothing remains undefined in an actual program run.

In contrast, the domain theoretic approach to ``undefined behavior'' is ``anything in, garbage out''.

Undefined is actually "whatever manufacturer of C Processing Unit decides, as long as C standard isn't violated(or violated in a consensual way, defined by some safeword in the C standard)"

p.s. the safeword is HAX_MY_ANUS

Thanks for the redpil now i see jews behind every programming language

>>4
Show me where the jews touched you on this doll.

``Undefined'' means defined somewhere else.

If ``Undefined'' meant ``defined somewhere else'' then it would be called ``defined somewhere else'', not ``Undefined''. ``Undefined'' means ``undefined'' for a specific set, be it the C standard or the world.

stop posting the same fucking thread already. we get it you don't like FP and domain theory

sag e

>>2
Lay off the blue pills for a while. There's no mention of ``C'' anywhere in the OP. ``C'' is ``undefined'' in this thread.

>>6
You're too blue pilled to post here. The definitions of ``undefined'' are right in front of your face. Division by zero is also fully defined in a non-domain-theoretic language.

>>9
Division by zero is defined as having no definition.

>>10
Nope, it's defined as infinity.

>>11
NaN is not the same as infinity.

>>11
There is no respectable mathematician who agree with that definition.

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>>11
nigger

>>13
Respectable mathematicians are in cahoots with the globalist NWO elite, who cares about them. If respectable mathematicians start preaching man-made global warming, are you going to believe them, too?

>>12
No, it's infinity. Infinity is a number just like negative infinity.

1/0 = ∞
-1/0 = -∞

Those equations are valid and precise math.

>>11
I was going to respond to this but then I read your >>16 about globalist NWO elite and it became obvious. I^almostHBT

>>16

Those equations are valid and precise math.

They don't mean the same thing as 2 * 3 = 6 though, because they don't obey any of the usual laws of arithmetic.

Infinity is a number

But if it is, then 0.999...<1 since
1-0.999...==0==(1/10)^inf
0==(1/10^inf)
0*(10^inf)=(1/(10^inf))*(10^inf)
0=1?, but 0<1 therefore 0.999...<1

>>19
0*(10^inf) = 0 according to whom

>>20
CNN

>>20
0*(10^inf)=0*(10*10*10*10...)=0*(10+10+10+10...)=0+0+0+0...

>>20
0 times whatever is 0 u fool

>>19
Your last 0=1 doesn't follow from previous step.

0*(10^inf)=(1/(10^inf))*(10^inf)

^^ okay, but then we get rid of (10^inf) on both sides and we get

0 = 1/(10^inf)

which is perfectly fine. Where did you get the 0=1?

>>22
Noa, 10^inf = inf, and 0*inf = 1.

boner penis

>>24
(1/(10^inf))*(10^inf) =1 since (x/y)*y=x (canceling the divisor)

>>27
Okay, but then there's 1 on the left, too:

0*(10^inf) = 0 * inf = 1

so 1 = 1 and no contradiction there.

>>28 Read >>22

>>29
Well, >>22 is wrong.

By definition,

10^∞ = ∞

I don't need to worry about this in my batch files

I don't need to worry about this in my dubs files.

dubs stolen