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An exclamation mark stands for factorial.
For instance, if the number is 7!, then that would be 7x6x5x4x3x2x1.
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Factorial means you multiply the integer written by every integer below it until you reach 1. Oddly enough, 0! = 1.
There is also a 'factorial' function for non-integral values, called the Gamma function.
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What does an exclamation point after number mean?
It can have the regular meaning of an exclamation point - that you want to draw the attention to the number. However, in math it may also refer to the factorial of the number. It means that you multiply all positive integers up to that number together. For example:5! = 1 x 2 x 3 x 4 x 5 = 120.
In math what does identify mean?
It means to point out the answer.
What does the lambda symbol in math mean?
Lambda is usually specified to mean wavelength in mathematics and physics.
What does Yd mean in math?
Yd is not a standrad mathematical symbol. Its meaning depends on the context.
What does endpoint mean in math?
It is the point at which a line segment ends!
