Integral Symbols & Alt and HTML Codes

The integral symbol ∫ takes the shape of long English (s) letter. It is a mathematical operator that assigns to function in a way that can define the area, volume, displacement, and concepts that arise by joining infinitesimal. The German mathematician Gottfried Wilhelm Leibniz introduced the integral symbol by the end of the 17th century.

The shape of the Integral may be different from the known shape in the English language, which leans to the right. In German, and most of the central European languages it is upright. In the Russian language, it leans to the left, in German limits are placed above and below the symbol.

How to use and type Integral symbol code?

  • If your keyboard contains separate NumPad, you should be sure that it is enabled. If it is not, press the Num Lock key to activate it then press hold down the Alt key on the left side. Type the number that represents that character or the symbol you want to insert and then release the insert key.
  • For example, for the greek letter omega Ω press and hold Alt and the type 0234 and then release.
  • There is another method that works only for word documents. In this method, you should type the characters first then press Alt and X. For example ( 0234 + Alt + X for greek letter omega ).
  • If you have a keyboard that doesn't have NumPad here is what will work for you. Find the Function key ( FN ) then presses and hold the function key while holding press and release Num LK key; then release FN key. This method will activate the numeric keypad in your laptop.
  • Then do the same steps as in the previous example.
  • Notice that in IBM code you don't use 0 (Alt + 255 ) before the code which is different from the windows generator that requires to add 0 (Alt + 0255 ) before the code.

Table of Symbols and Codes

Symbol Title / Description Unicode Code / HTML Code
Summation With Integral ⨋ ⨋
Integral With Double Stroke ⨎ ⨎
Integral Average With Slash ⨏ ⨏
Integral With Intersection ⨙ ⨙
Integral Around A Point Operator ⨕ ⨕
Integral With Overbar ⨛ ⨛
Integral With Times ⨘ ⨘
Quadruple Integral Operator ⨌ ⨌
Integral With Underbar ⨜ ⨜
Quaternion Integral Operator ⨖ ⨖
Integral With Union ⨚ ⨚
Finite Part Integral ⨍ ⨍

Something doesn't work?

  • The Num lock should always be enabled. If it is disabled when you are attempting an alt code, it may cause errors or unexpected results in some applications. For example, Alt+4 could be interpreted as Alt +, ← which causes the browser to go back if the Num lock is disabled.
  • If your laptop keyboard doesn't have a separate NumPad, you should hold FN button with Alt button while typing the code.
  • This method does not work for Linux system, but it is possible to use Unicode.

Other Math Symbols

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