Editing Operators (section)

== Other Mathematical Operators ==
* Summation (∑)
** Adds up a sequence of numbers.
*** Finding totals, calculating areas under curves.

* Product (∏)
** Multiplies a sequence of numbers.
*** Finding products, calculating volumes of irregular shapes.

* Integral with Limits (∫ₐᵇ)
** Computes the area under a curve between two points.
*** Finding areas, computing volumes, calculating work.

* Partial Derivative (∂)
** Derivative of a function of several variables with respect to one variable, holding others constant.
*** Multivariable calculus, optimization.

* Infimum (inf)
** Greatest lower bound of a set.
*** Optimization, analysis of functions.

* Supremum (sup)
** Least upper bound of a set.
*** Optimization, analysis of functions.

* Absolute Value (|x|)
** Distance of a number from zero.
*** Distance calculations, finding magnitudes.

* Factorial (!)
** Product of all positive integers less than or equal to a given number.
*** Counting permutations, combinations.

* Round (round)
** Rounds a number to the nearest integer.
*** Approximation, formatting numbers.

* Logarithm (log)
** Inverse operation to exponentiation.
*** Scaling, orders of magnitude, solving exponential equations.

* Greatest Integer Function (⌊x⌋)
** Greatest integer less than or equal to a given number.
*** Floor function, truncating decimals.

* Ceiling Function (⌈x⌉)
** Smallest integer greater than or equal to a given number.
*** Ceiling function, rounding up.

* Signum Function (sgn)
** Returns the sign of a number.
*** Determining direction, characterizing solutions.