Visual Dictionary Online

Theme

mathematics The science that uses deductive reasoning to study the properties of abstract entities such as numbers, space and functions and the relations between them. factorial Product of all positive whole numbers less than and equal to a given number. For example, the factorial of 4 is: 4! = 1x2x3x4 = 24.

integral Result of the integral calculation used especially to determine an area and to resolve a differential equation.

infinity Symbol denoting that a value has no upper limit.

fraction Sign denoting that the number on the left of the slash (numerator) is one part of the number on the right of the slash (denominator).

square root of Sign denoting that, when a number is multiplied by itself, the result is the number that appears below the bar.

is not an element of Binary sign denoting that the element on the left is not included in the set on the right.

is an element of Binary sign denoting that the element on the left is included in the set on the right.

union of two sets Binary sign denoting that a set is composed of the sum of the elements of two sets.

intersection of two sets Binary sign denoting that two sets M and N have elements in common.

is included in/is a subset of Binary sign denoting that a set A on the left is part of the set B on the right.

percent Sign denoting that the number preceding it is a fraction of 100.

empty set Sign denoting that a set contains no elements.