The Mathematical Symbol "Not Less-Than (≮)"

The "Not Less-Than" Symbol (≮): An Essential Inequality Notation

In the wide spectrum of mathematical notation, symbols play a pivotal role in conveying relationships succinctly and unambiguously. The ≮ symbol, representing "Not Less-Than", is one such symbol. This article delves into its meaning, importance, and instances of use.

Decoding ≮

The ≮ symbol is a straightforward way to represent the inequality where a value is not less than another. Essentially, it combines two fundamental concepts: "less-than" (<) and "not" (¬), leading to the meaning "not less-than" or, equivalently, "greater-than or equal to".

Example 1: Basic Inequality

If we have two numbers, a and b, the relation \( a ≮ b \) states that \( a \) is neither less than nor equal to \( b \), so it must be greater than \( b \).

Example 2: Real-world Application

Consider a scenario where an individual must be at least 18 years old to vote. If \( x \) represents age, the inequality \( x ≮ 18 \) implies that the individual's age exceeds 18, rendering them ineligible to vote.

Domains of ≮ Application

The ≮ symbol permeates several areas of mathematics and related fields:

  • Algebra: Frequently used to solve and represent inequalities.
  • Calculus: In discussions about limits and bounds.
  • Statistics: For defining and discussing data ranges and outliers.
  • Programming: A common operator in conditional statements.

Its universal recognition ensures that mathematical and technical discussions remain clear, reducing potential ambiguities.

To sum up, the ≮ symbol is a cornerstone in mathematical notation, indicating the "Not Less-Than" relationship. It's an elegant way to depict a fundamental concept, showcasing the depth and breadth of mathematical symbolism.

Mathematical symbol 'Not Less-Than'

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Codes for the ≮ Symbol

The Symbol≮
Alt CodeAlt 8814
HTML Code&#8814;
HTML Entity&nlt;
CSS Code\226E
Hex Code&#x226E;
UnicodeU+226E

How To Insert the ≮ Symbol

(Method 1) Copy and paste the symbol.

The easiest way to get the ≮ symbol is to copy and paste it into your document.

Bear in mind that this is a UTF-8 encoded character. It must be encoded as UTF-8 at all stages (copying, replacing, editing, pasting), otherwise it will render as random characters or the dreaded �.

(Method 2) Use the "Alt Code."

If you have a keyboard with a numeric pad, you can use this method. Simply hold down the Alt key and type 8814. When you lift the Alt key, the symbol appears. ("Num Lock" must be on.)

(Method 3) Use the HTML Decimal Code (for webpages).

HTML TextOutput
<b>My symbol: &#8814;</b>My symbol: ≮

(Method 4) Use the HTML Entity Code (for webpages).

HTML TextOutput
<b>My symbol: &nlt;</b>My symbol: ≮

(Method 5) Use the CSS Code (for webpages).

CSS and HTML TextOutput
<style>
span:after {
content: "\226E";}
</style>
<span>My symbol:</span> 		My symbol: ≮

(Method 6) Use the HTML Hex Code (for webpages and HTML canvas).

HTML TextOutput
<b>My symbol: &#x226E;</b>My symbol: ≮
On the assumption that you already have your canvas and the context set up, use the Hex code in the format 0x226E to place the ≮ symbol on your canvas. For example:
JavaScript Text
const x = "0x"+"E9"
ctx.fillText(String.fromCodePoint(x), 5, 5);
Output

≮

(Method 7) Use the Unicode (for various, e.g. Microsoft Office, JavaScript, Perl).

The Unicode for ≮ is U+226E. The important part is the hexadecimal number after the U+, which is used in various formats. For example, in Microsoft Office applications (e.g. Word, PowerPoint), do the following:
TypeOutput
226E
[Hold down Alt]
[Press x]		≮
(The 226E turns into ≮. Note that you can omit any leading zeros.)
In JavaScript, the syntax is \uXXXX. So, our example would be \u226E. (Note that the format is 4 hexadecimal characters.)
JavaScript TextOutput
let str = "\u226E"
document.write("My symbol: " + str)		My symbol: ≮