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Mathematical Constants

Intriguing, ubiquitous, and at times mysterious, numerical constants set the allowable limits for all universal phenomena. Whether your questions involves π, Avogadro's number, Planck's constant, the atomic mass unit, or any of the other multitudes of immutable numbers used in science, this is the category where they should be asked.

2,332 Questions

Is graham number beyond all finite transfinite and transinfinite numbers?

Graham's number is a large but finite number. Therefore it is less than every transfinite cardinal number. "Transinfinite" doesn't make sense.

What numbers are in pi and how many are there?

Pi is the ratio of the circumference of a circle to its diameter. Pi is 3.1415926535897932384626433832795 but some just use 3.14

Example of imaginary number?

The canonical example is the square root of -1.

Mathematicians use the symbol i to represent it, electrical engineers use j because i is already busy.

Can Planck's constant is zero?

No. It is a very small number (approximately 6.626 × 10-34 joule-second) but that is NOT zero

What is held constant in water?

The proportion of hydrogen and oxygen atoms in its molecules.

Do ANY number series in pi repeat themselves?

There are short strings of digits which will repeat, but there is no sequence which will repeat forever.

Why you call zero by the name zero?

The derivation is from the early 17th cent.: from French zéro or Italian zero, via Old Spanish from Arabic ṣifr 'cipher.'

What is the solution to 30X to 29Y?

"30X to 29Y" is not an equation nor an inequality. There is, therefore, not a mathematical solution to the question.

What is Boltzman's constant?

The Boltzman's constant is the physical constant relating to temperature to energy.

How many decillions are in 1 googol?

In researching the answer, we found the following definitions on the www :

1 decillion = 1033

1 googol = 10100

So the number of decillion in 1 googol is

10100 / 1033 = 10(100-33) = 1067

We couldn't find a name for 1067. Apparently it doesn't come up very often.

Do pi's number peridodic?

They may be. But as far as pi has been carried out until now ... 2.5 trillion decimal places

claimed in 2009 by a team in Japan ... no repeating digits have been found yet.

What is the general number for pi?

The answer is 3.141592654, often shortened to 3.14.