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Is infinity a number?
No, infinity is not a number, in the mathematical sense. It is a symbol for "unlimited". As such it has uses in various theories in math and in physics. The simplest proof is adding a real value, such as 1, to infinity. Just as zero times any number is still zero, infinity plus any value will remain "infinity".
What is the value of gravitational field at infinity?
zero
Why is zero times infinity undefined?
Because zero multiplied by any number is always zero, but anything multiplied by infinity is infinity. Zero times infinity is being pulled both ways. Also, the definition of infinity is any number x divided by 0. When you multiply zero by infinity, the zeroes "cancel out", leaving absolutely nothing behind.
How do you wirte infinity?
Infinity means some non-zero value divided by zero. It was commonly written as 1/0
What is infinity to the power of zero?
No matter how many times you multiply zero by itself, you will always get zero.
