Wikipedia
real numbers called : A sequence (xn) of real numbers is called a Cauchy sequence if for any > 0 there exists an integer N (possibly depending on ) such that the distance |xn ..... More from Wikipedia
Complex Numbers
If x and y are real numbers, then x + iy is called a complex number. x is called the real part and y is called the imaginary part. The complex number x + iy is also written as an ordered pair (x, y) and is denoted by z...
If x and y are real numbers, then x + iy is called a complex number. x is called the real part and y is called the imaginary part. The complex number x + iy is also written as an ordered pair (x, y) and is denoted by z...Complex Numbers
Square root of a negative number is known as an imaginary number . If x and y are real numbers, then x + iy is called a complex number . x is called the real part and y is called the imaginary..
Videos of mine that I think are underviewed/underrated: www.youtube.com www.youtube.com www.youtube.com www.youtube.com www.youtube.com Feynman lectures: research.microsoft.com Constants of the universe and ID: en.wikipedia.org en.wikipedia.org Real Numbers: en.wikipedia.org
Theater in Milwaukee, taken between October 11 through October 16th in 1940. This was the third city in their "Hellaballou" tour. The dance number costumes are the same costume that Lois Laurel (Stan's daughter) was photographed in that had appeared in a recent Intra Tent Journal article on the tours. The girls are doing a number called "The Three Musketeers", and you get to see the fencing in one segment of this clip. The male-female dance couple are the Fredricos, and the end singer is ...
Question : I need to know why our number system is know or refered to as Real Numbers
Answer : because there are also imaginary numbers. imaginary numbers are used to represent the square roots of negative numbers. since the square root of a number is the number that you multiply by itself to get that number, the negatives have no real square roots (negative times negative = positive) so someone invented imaginary numbers to represent the square roots of negative numbers. the square root of -1 is i... More from Yahoo Answers
Answer : because there are also imaginary numbers. imaginary numbers are used to represent the square roots of negative numbers. since the square root of a number is the number that you multiply by itself to get that number, the negatives have no real square roots (negative times negative = positive) so someone invented imaginary numbers to represent the square roots of negative numbers. the square root of -1 is i... More from Yahoo Answers
Question : I thought it was called that but I wasn't sure, and it's been bugging me all day and night.
Answer : If you end up with a contradiction (like 0 = 20) that means there are *no solutions*. For example if you had: x = x + 20 You can see that nothing can be 20 more than itself. I'm certainly not the same age I was 20 years ago... right? If you subtract x from both sides you get: 0 = 20 This is an obvious contradiction so no value of x will satisfy the equation. Now on the other hand, if you get to an absolute truth (like 2 = 2) then you know that *any* value of x will satisfy the problem. Then the answer is "all real numbers"... More from Yahoo Answers
Answer : If you end up with a contradiction (like 0 = 20) that means there are *no solutions*. For example if you had: x = x + 20 You can see that nothing can be 20 more than itself. I'm certainly not the same age I was 20 years ago... right? If you subtract x from both sides you get: 0 = 20 This is an obvious contradiction so no value of x will satisfy the equation. Now on the other hand, if you get to an absolute truth (like 2 = 2) then you know that *any* value of x will satisfy the problem. Then the answer is "all real numbers"... More from Yahoo Answers
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