Imaginary, or more precisely complex numbers (vectors that have a real part and an imaginary part) are used in a variety of fields, including:
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Imaginary, or more precisely complex numbers (vectors that have a real part and an imaginary part) are used in a variety of fields, including:
An imaginary number is simply a number that contains 'i' which is simply shorthand for the square root of minus one. In the same way, we can write the square root of other negative numbers using i as a factor. For example;Sqrt(-64) = Sqrt(-1*64) = Sqrt(-1)*Sqrt(64) = i*8 = 8iThere are also 'complex numbers' which are simply combinations of real numbers (all positive and negative numbers) and imaginary numbers. For example;2+3iIs a complex number. Although these numbers seem not to "exist" (it's impossible to have a set of 8i golf balls, or for you to weigh 3i kg) they are very useful in the fields of mathematics, physics, and engineering, and allowing their existence can save a lot of trouble when it comes to doing difficult math.
Real numbers, Rational numbers, and Integers.The other three are Irrational (numbers that cannot be expressed as fractions), Whole numbers (0,1,2,3,4...) and Natural numbers (1,2,3,4,5...).EDIT: There is also imaginary numbers (√-1, often expressed as i ) and complex numbers (numbers that contain both a real and imaginary part i.e. a+bi where a and b are real numbers and i is an imaginary number)
Every integer (whole numbers, including positives, negatives, and zero) is either odd or even. No number is both odd and even. Other numbers, such as fractions that don't reduce to an integer, irrational numbers, and pure imaginary numbers are neither odd nor even. Zero is an even number and is not an odd number.
well there's three answers to this question one of them is one and the other two are roots of a quadratic equation that include the imaginary number i. forgot the exact answers but i remember that you have to factor x^3-1
Numbers can have an absolute magnitude, which means the size of the number whether positive or negative (in other words, 5 or -5 both have an absolute magnitude of 5) but there is no established meaning for "absolute number". Numbers can be a variety of things; they can be real or imaginary, they can be rational or irrational, they can be transcendental, they can be finite or transfinite. But they are not described as absolute (again, except in the contest of absolute magnitude).