Search results

...hematics]], a '''Pythagorean triple''' is a set of three [[Positive number|positive]] [[integer|integers]] which satisfy the [[equation]] (make the equation wo • all even numbers, or ...

...mat number''' is a special [[positive number|positive]] [[number]]. Fermat numbers are named after [[Pierre de Fermat]]. The formula that generates them is where ''n'' is a nonnegative integer. The first nine Fermat numbers are {{OEIS|id=A000215}}: ...

...say "number" they usually mean "real number". The official symbol for real numbers is a bold '''R''' or a blackboard bold <math>\mathbb{R}</math>. ...ven minus signs (–) so that they are labeled differently from the positive numbers. ...

A '''positive-definite matrix''' is a [[matrix (mathematics)|matrix]] with special proper ...se]] and be greater than zero. The vector chosen must be filled with real numbers. ...

...vely prime means that they do not have common divisors, other than 1. Such numbers are named after [[Robert Daniel Carmichael|Robert Carmichael]]. ...many Carmichael numbers. We can say that Carmichael numbers are composite numbers that behave a little bit like they would be a prime number. ...

...l number instead of a positive real number. This is not possible with real numbers, as there is no real number that will multiply by itself to get a negative ...''' are to '''negative numbers''' what negative numbers are to '''positive numbers'''. If I say "go east by -1 mile" it is the same as if I had said "go west ...

...but in the [[integers]] subtraction does have closure. Subtraction of two numbers can produce a negative number, which is not a natural number, but it is an ...]] are a closure of the real numbers by including square roots of negative numbers. ...

.... A number bigger than zero has two square roots: one is [[positive number|positive]] (bigger than zero) and the other is [[negative number|negative]] (smaller ...umber]]s – they are [[imaginary numbers]]. Imaginary numbers are basically numbers that cannot be square rooted and get a real result. Every [[complex number] ...

...numbers have a [[:wikt:minus|minus]] (−) in front of the number. Positive numbers have no sign or a [[:wikt:plus|plus]] (+) sign in front. Zero usually has n Zero is also an integer but it is not positive nor negative. "Integer" is another word for "whole". An integer is a [[rati ...

...]] [0;1] is a proper subset of the set of [[real number]]s or the set of [[positive number]]s. ...

...at any polynomial function <math>y=f(x)</math> on the real line that takes positive and negative values for <math>y</math> has to cross <math>x</math> axis. ...

...]. Rational numbers are all [[real numbers]], and can be [[Positive_number|positive]] or [[negative]]. A number that is not rational is called [[Irrational_num Most of the numbers that people use in everyday life are rational. These include fractions and ...

...le_function|differentiable]] at this point. These are all of your critical numbers. Plug these numbers into your original function to find the exact [[:en:Coordinate_system|coord ...

...atics]], the '''norm''' of a [[vector]] is its [[length]]. For the [[real numbers]] the only norm is the [[absolute value]]. For [[vector space|spaces]] wit # [[Positive homogeneity|Scales]] for real numbers <math>a</math>, that is <math>p(ax) = |a|p(x)</math> ...

|<center>'''Natural numbers example''' Numbers less than [[0]] (such as [[−1]]) are not natural numbers. ...

<math>\sum d^2</math> means that we take the total of all the numbers that were in the column <math>d^2</math>. This is because <math>\sum</math> == What the numbers mean == ...

...e number of a number, is the [[negative number|negative]] version of the [[positive]] number. This is what the opposite of 7 is or the opposite of -7. [[Category:Numbers]] ...

:''For the book in the Bible, see [[Numbers (Bible)]]''. ...] or [[measurement|measure]]. Depending on the field of mathematics, where numbers are used, there are different definitions: ...

In [[number theory]], the '''totient''' of a [[positive number|positive]] [[integer]] is the number of integers smaller than ''n'' which are [[copr For example, <math>\phi(8) = 4</math>, because the four numbers: 1, 3, 5 and 7 don't share any factors with 8. ...

...icab number is the smallest number that can be expressed as the sum of two positive cubes in ''n'' distinct ways. It has nothing to do with [[taxi]]s, but the *27+8=35, so 35 is the “sum of two cubes” (“[[sum]]” in this sense means “numbers that are added together”). ...