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With no context it is difficult to be sure but I suggest that n is a counter: a variable that goes 1, 2, 3, 4, ...and x, unfortunately, represents multiplication. I say unfortunately because the accepted symbol nowadays is * rather than x.
So the expression is to multiply a number by its predecessor. The expression could represent the number of permutations of two objects selected from n distinct objects.
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What does it mean to say that x is the common logarithm of N?
Saying that "X is the common logarithm of N" means that 10 raised to the power of X is N, or 10X = N. For instance, the common logarithm of 100 is 2, of 1000 is 3, and of 25 is about 1.398.
What does x equals 2n mean?
Genealogical answer: >2 is the number of parents. >n is the number of generations back. >x is the number of ancestors within that generation.
What does an exclamation point after a number mean?
Factorial. n! = 1x2x3x4x.....x(n-2)x(n-1)xn. Examples: 3! = 1x2x3 = 6 7! = 1x2x3x4x5x6x7=5040
What must you multiply n squared to get n cubed?
n squared x n n x n x n = n cubed n x n = n squared n squared x n = n cubed
What does XN mean in math?
In mathematics, XN typically represents a variable (X) raised to a power (N). This is known as exponentiation, where X is the base and N is the exponent. The expression XN is equal to multiplying X by itself N times. For example, X2 means X squared, which is X multiplied by itself two times.
