List of Math Words That Start With F

Looking for math words that start with F?

From Finite to Formula everything in between, there are loads of words beginning with the letter F that are used in math and other numbers sciences.

Here is a list of words starting with F that you may see being used in the subject of Math:

Math Words That Start With F

Face – a face is a flat surface (a planar region) that forms part of the boundary of a solid object; a three-dimensional solid bounded exclusively by faces is a polyhedron.

Face Of A Polyhedron – Face: the flat surfaces that make up a polyhedron are called its faces.

Factor – number or algebraic expression that divides another number or expression evenly—i.e., with no remainder.

Factor Of A Polynomial – A factor of polynomial P(x) is any polynomial which divides evenly into P(x).

Factor Of An Integer – a number or algebraic expression that divides another number or expression evenly—i.e., with no remainder.

Factor Theorem – a theorem linking factors and zeros of a polynomial. It is a special case of the polynomial remainder theorem. 

Factor Tree – a way of expressing the factors of a number, specifically the prime factorization of a number.

Factorial – the product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point.

Factoring – when you break a number down into smaller numbers that, multiplied together, give you that original number. 

Factoring Rules – a number or algebraic expression that divides another number or expression evenly—i.e., with no remainder.

Fibonacci Sequence – a series of numbers in which each number is the sum of the two that precede it.

Finite – having bounds or limits; not infinite; measurable.

Finite Number – a set that has a finite number of elements. In simple words, it is a set that you can finish counting. 

First Derivative – a point is the slope of the tangent line at that point.

First Derivative Test – a derivative test uses the derivatives of a function to locate the critical points of a function and determine whether each point is a local maximum, a local minimum, or a saddle point.

First Order Differential Equation – an equation of the form F(t,y,˙y)=0.

First Quartile – A quartile divides data into three points—a lower quartile, median, and upper quartile—to form four groups of the dataset.

Five Number Summary – A five-number summary is especially useful in descriptive analyses or during the preliminary investigation of a large data set.

Fixed – a fixed point (sometimes shortened to fixpoint, also known as an invariant point) of a function is an element of the function’s domain that is mapped to itself by the function.

Flip – A flip is a motion in geometry in which an object is turned over a straight line to form a mirror image.

Floor Function – the function that takes as input a real number x, and gives as output the greatest integer less than or equal to x, denoted floor or ⌊x⌋.

Focal Radius – refers to the distance from a point on a conic section to a focus.

Foci Of A Hyperbola – Two fixed points located inside each curve of a hyperbola that are used in the curve’s formal definition.

Foci Of An Ellipse – two fixed points on its major axis such that sum of the distance of any point, on the ellipse, from these two points, is constant.

Focus – a point used to construct a conic section.

Focus Of A Parabola – set of all points in a plane which are an equal distance away from a given point and given line.

Foil Method – In elementary algebra, FOIL is a mnemonic for the standard method of multiplying two binomials—hence the method may be referred to as the FOIL method.

Foot – A unit of length (or distance) in US units equal to 12 inches.

Formula – a mathematical rule or relationship that uses letters to represent amounts which can be changed – these are called variables.

Fractal – a subset of Euclidean space with a fractal dimension that strictly exceeds its topological dimension.

Fraction –  number expressed as a quotient, in which a numerator is divided by a denominator. 

Fraction Rules – To add or subtract fractions they must have the same denominator (the bottom value).

Fractional Equation – an equation containing the unknown in the denominator of one or more terms.

Fractional Exponents – If an exponent of a number is a fraction, it is called a fractional exponent.

Fractional Expression – Fractional expressions are fractions that have a variable in the denominator.

Frequency – refers to the number of times an event or a value occurs.

Frequency Table – a frequency distribution is a list, table or graph that displays the frequency of various outcomes in a sample.

Frustum Of A Cone Or Pyramid – In geometry, a frustum is the portion of a solid that lies between one or two parallel planes cutting it.

Function – an expression, rule, or law that defines a relationship between one variable and another variable.

Function Operations – rules that we follow to solve functions. 

I hope you found the words you were looking for from the list above.

This isn’t an exhaustive list, if there are any math words starting with the letter F that you would like added to the list, please leave me a comment below.

If you’d like to explore more math words starting with different letters of the alphabet, click any of the letters below to go to the list for that letter:


Image credits – Photo by Joshua Hoehne on Unsplash

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