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#1 2012-10-21 05:34:26
- Shivamcoder3013
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Zahlen
I was originally born in India, where I learned something different then here in Canada. Here, I hear (word pun!) that the symbol for Integers is I, however I recall being taught that Integer was represented by Z (as in the German word Zahlen) meaning "to count upwards".
Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.
-Archimedes
My maturity level depends on the people I am around.
#2 2012-10-21 05:39:47
- zetafunc.
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Re: Zahlen
Yes, the boldface 'Z' is German for 'zahl', which I think is German for 'integer'. I've only ever seen "I" used to represent the set of all imaginary numbers, and to denote the identity mapping.
#3 2012-10-21 05:45:04
- Shivamcoder3013
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Re: Zahlen
I believe imag numbers are represented with a C-, is it not? In the education system here, they showcase Integer as I.
Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.
-Archimedes
My maturity level depends on the people I am around.
#4 2012-10-21 05:49:58
- zetafunc.
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Re: Zahlen
C-? Hmm, I have never seen that before. I've only seen C for the complex numbers. Does C+ have any meaning in your system, just out of interest?
#5 2012-10-21 05:51:42
- anonimnystefy
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Re: Zahlen
Shivamcoder3013 wrote:
I believe imag numbers are represented with a C-, is it not? In the education system here, they showcase Integer as I.
C are complex numbers.
I are irrationals.
I can also represent the identity matrix.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#6 2012-10-21 05:51:56
- Shivamcoder3013
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Re: Zahlen
By C-, I meant C with a dash on top: -
C
Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.
-Archimedes
My maturity level depends on the people I am around.
#7 2012-10-21 06:46:03
- anonimnystefy
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Re: Zahlen
I prefer iR.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#8 2012-10-21 07:06:41
- Shivamcoder3013
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Re: Zahlen
Ah. So there is no actual specified system for the representation of such number systems. They should call it SINS, as in System Internationale Number Systems (not implying that it is morally degenerate however).
Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.
-Archimedes
My maturity level depends on the people I am around.
#9 2012-10-21 07:11:27
- bobbym
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Re: Zahlen
Anybody ever heard of N Z Q R C?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#10 2012-10-21 07:21:39
- anonimnystefy
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Re: Zahlen
Of course. But those are all just conventional. You could call the naturals F, although nobody would know you are referring to them, unless you specify your notation...
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#11 2012-10-21 07:24:01
- bobbym
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Re: Zahlen
That is my pet peeve. I almost always go berserk when I am reading something and the guy defines something in a non standard way.
Had a combinatorics and summation book like that. Insisted on using different symbols. Ripped em both up and burned em.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.