# How to write infinity in interval notation How to Express Your Answer in Interval Notation Sciencing I can solve this by surrounding the whole value in braces, but then the spacing around the equal sign is still not correct. Interval notation is a simplified form of writing the solution to an inequality or system of. In the example, the lower bound of x is negative infinity, so write "-∞.".

What is Interval Notation? - A Knowledge Archive For other combinations of intervals and operators, different spacing inconsistencies arise. An interval notation is a mathematical method of writing down a set of numbers along an axis. It is also used to describe a specific group of numbers along the X-Axis. In another way, it may be synonymous to a way of writing subsets of the real number line. Looking at the linear equation.

Interval Notation Zona Land Education What is the correct and easy way to input intervals in order to avoid having to take care of this at all? Interval notation is a method of writing down a set of numbers. Usually, this is used to describe a certain span or group of spans of numbers along a axis, such as an x-axis. However, this notation can be used to describe any group of numbers. For example, consider the set of numbers.

Interval Notation - Infinite intervals Here is a macro which takes care of the spacing and allows you to choose between a resizable version (when followed by a star, for use in display) and a fixed-size version (without a star, for use in text). We use the symbol ∞ to indicate "infinity" or the idea that an interval does not have an endpoint. Since ∞ is not a number, it should not be used with a square.

WeBWorK Help Interval Notation But we can also "build" a set by describing what is in it. For infinite intervals, use Inf for ∞ infinity and/or -Inf for -∞ -Infinity. For example, the infinite interval containing all points greater than or equal to 6 is.