PERMUTATION
A way, especially one of several possible variations, in which a set or number of things can be ordered or arranged
120 permutations of the numbers 1, 2, 3, 4 and 5
QUINTILLION
a number equal to 1 followed by 18 zeros
‘ASYMPTOTE
A line that a graph approaches but doesn’t intersect
‘TANGENT
a straight line that touches but does not cut into a curve
‘THE-O-REM
A formal statement that can be shown to be true by logic
AXIOM
a formal statement in maths, from which other statements can be obtained