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probability - What is the difference between root mean square, and ...
After deriving this and getting some root mean square, wouldn't this just be the same as finding the standard deviation? The standard deviation is the root of the mean of the squared data. Isn't that also just the root mean square? Also, what exactly are the implications of the root mean square, what does it even mean in regards to our problem?
What is the square root of cake? - Answers
The question What is the square root of cake? is meant as a joke or riddle. Answers best "mathema-medians" have proposed there are at least 2 'punchlines' as appropriate answers: The sqrt (cake ...
What is $\sqrt {i}$? - Mathematics Stack Exchange
The square root of i is (1 + i)/sqrt (2). [Try it out my multiplying it by itself.] It has no special notation beyond other complex numbers; in my discipline, at least, it comes up about half as often as the square root of 2 does --- that is, it isn't rare, but it arises only because of our prejudice for things which can be expressed using small integers.
why the square root of x equals x to the one half power
why the square root of x equals x to the one half power [duplicate] Ask Question Asked 12 years, 2 months ago Modified 1 year, 7 months ago
Why is square root symbol the principal square root?
When researching square roots I found that $\\sqrt{x}$ is the principal square root and $\\pm\\sqrt{x}$ is the square roots, with the reason for why being given through an example equation by user9464...
radicals - Square root of a number squared is equal to the absolute ...
5 You are referring to the principal square root. From Wikipedia: "Although the principal square root of a positive number is only one of its two square roots, the designation 'the square root' is often used to refer to the principal square root."
Derivative of square root - Mathematics Stack Exchange
What would be the derivative of square roots? For example if I have $2 \\sqrt{x}$ or $\\sqrt{x}$. I'm unsure how to find the derivative of these and include them especially in something like implicit.
What does the small number on top of the square root symbol mean?
What does the small number on top of the square root symbol mean? Ask Question Asked 12 years, 8 months ago Modified 5 years, 7 months ago
radicals - How do I get the square root of a complex number ...
The square root is not a well defined function on complex numbers. Because of the fundamental theorem of algebra, you will always have two different square roots for a given number.
Whats the rule for putting up a plus-minus sign when taking under root?
But when we take the square root of the left hand side, we must also arrive at a positive number (by definition). In this simple example, we can easily see that a -7 value for x would also satisfies the original equation, so we have to apply a negative to that -7 in order to arrive at the positive (again, by definition) square root.
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