Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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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.
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...
Anybody ever heard of N Z Q R C?
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).
I prefer iR.
By C-, I meant C with a dash on top: -
C are complex numbers.
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?
I believe imag numbers are represented with a C-, is it not? In the education system here, they showcase Integer as I.
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.
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".