# BASIC ALGEBRA GLOSSARY

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Title Description
Natural The set of Natural Numbers is also the set of counting numbers, the same numbers we learn to count when we're little kids: 1, 2, 3, 4....
Precisely in the language of math these are the positive integers.
Natural Logarithm The base of the Natural Logarithms is e, approximately 2.718.
At 100 percent annual interest with continuous compounding over a year, the multiplication factor of principal is precisely e.
Natural Numbers The set of Natural Numbers is also the set of counting numbers, the same numbers we learn to count when we're little kids: 1, 2, 3, 4....
More precisely in the language of math these are the positive integers.
Negative Real values less than zero are Negative.
We also consider the Negative of a real value to have the opposite sign, as the opposite (or Negative) of a Negative value is positive.
Negative Reciprocal The product of two Negative Reciprocals is -1.
When lines in Cartesian or rectangular coordinates meet at right angles they have Negative Reciprocal slopes, unless they are precisely horizontal and vertical.
Non-collinear Not linear, not aligned, not part of the same line.
Not collinear.
Nonagon A nine-sided polygon.
Nonnegative We have occasions to refer to all positive values as well as to zero.
These are all the real values that are Nonnegative.
Literally, not negative.
Nonzero Literally, not zero.
Typically used to mean either positive or negative values.
Nth Degree Simply raised to the degree of integer (usually) n, or N.
In common, everyday language, to pursue something excessively, as parents giving the suitor of their teenage daughter an interrogation "to the nth degree."
Nth Root Given some integer N and a real value, the Nth Root of the real value is the number that when raised to the N power returns the real value.
Nu Nu is the 13th letter of the Greek alphabet.
Null Set The Null Set is the empty set.
Mathematically there is but one empty set, the unique Null Set, the set with nothing in it.
Number Line The real Number Line is a depiction of the set of all real numbers from negative infinity to positive infinity.
All real numbers lie on the Real Number Line.
Numerator The top number in a fraction, above the fraction bar, is the Numerator.
It is the dividend to be divided by the divisor, which is the denominator.

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