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In Mathematics what does the letter Z refer to and WHY is this letter used to...
This is a discussion on In Mathematics what does the letter Z refer to and WHY is this letter used to... within the General Chat forums, part of the Main Category category; ...desgnate such numbers.? Why Z? I know that R = Rational numbers What is the relation between Z and the numbers ...
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10-06-2009, 04:30 PM
| #1 |
| Junior Member Join Date: Oct 2009
Posts: 1
| ...desgnate such numbers.? Why Z? I know that R = Rational numbers What is the relation between Z and the numbers it represents? |
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10-06-2009, 04:41 PM
| #2 |
| Junior Member Join Date: Mar 2009
Posts: 2
|  Yes, the set of integers is designated by capital (and bold) Z. The word for integers in German begins with the letter Z and was first used by the German mathematician, Gauss. Little z, usally represents a number in the form: z = a + bi, where i=Sqrt[-1] and a and b are real numbers. These numbers are Complex Numbers. |
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10-06-2009, 04:46 PM
| #3 |
| Junior Member Join Date: Oct 2009
Posts: 1
| Don't forget, in 3D plotting, Z is the third dimension after X and Y |
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10-06-2009, 04:47 PM
| #4 |
| Junior Member Join Date: Oct 2009
Posts: 1
| As milkyway says, R is actually the real numbers, and Q is the rational numbers. The german word 'Zahlen' also, more importantly, means 'numbers.' Slightly more relevant than the verb 'to figure.' :-) |
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10-06-2009, 05:18 PM
| #5 |
| Junior Member Join Date: Oct 2009
Posts: 1
| Z = set of all integers. R = set of all rationls C = set of all complex numbers N = set of all natural numbers (positive integers) |
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