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Two sided arrow symbol12/16/2023 First of all, note that not all of them is present. 8 arcs, 2 directions, there are a combination of 16 possibilities. Each arc can be clockwise or anti-clockwise. There are 2 of them, and 4 of the diagonal arcs. The names are inconsistent.įinally, in Unicode 7, a new one with consistent name is added. You can see that, this right pointing arrow was there first. However, there was no “RIGHTWARDS BLACK ARROW” for about 10 years. Thus you have “Supplemental Arrows-A” and “Supplemental Arrows-B”.įor similar reasons, other symmetric versions of the same style such as upward and or downward versions are scattered in wildly different blocks.įor example, here's some arrows and their names: Codepoint So, the left pointing ones get added, in the same block but different neighborhood, or in another block. In the beginning of Unicode history, there's just a right pointing arrow of a particular style, because left pointing ones are seldomly or never used.īut later, it's realized the left pointing ones are important too, for one reason or another, and sometimes there's a need just for completeness because Unicode became more wide spread. The most common ones are collected in “Symbols, Arrows (2190–21FF)”. They are scattered in different code blocks. Also, there are a lot symmetry issues, and some mirror image isn't there. They are scattered in different places, and are hard to find. It took me several days to collect and organize these arrows. These are from several different sections of Unicode, including: Here is a screenshot showing what they look like in my browser. Unicode: Whitespace Representation ⇥ ▷ ␣ ¶.The package mathtools offers more possibilities for combining arrows and text labels.Īt this level, we reached the end of this post.Here is a complete list of arrows of Unicode, grouped by style. To avoid these issues, you need to add a \rule to push them downward as shown below: % Long arrows in latex (under) The lower arrows are usually too close to the math expressions, as is seen on the above equations. Here are the commands of lengthening arrows on the top of any math expressions pointing towards left, right, and both directions: % Long arrows in latex (over)īesides, the following commands refer to the extended arrows under any math expressions (change over prefix by under prefix): % Long arrows in latex (under) Output: Long LaTeX Arrows in Mathematical ModeĪmsmath package of LaTeX offers a bunch of commands to generate “Extra Long Arrows” for combining with mathematical expressions. $$f(c+a) \Longleftrightarrow f(c)+f(a)$$ %display style other way $$f(c+a) \iff f(c)+f(a)$$ %display style one way $$f(c) \leftarrow 2x+1$$ %display style other way $$f(c) \gets 2x+1$$ %display style one way $$f(c) \rightarrow 2x+1$$ %display style other way $$f(c) \to 2x+1$$ % display style one way Here is an example that uses \to instead of \leftarrow in an equation: % \to, \gets and \iff commands Another command ⇔ can be replaced by \iff. The arrow symbols ← and → can also be referred to under the names \to and \gets. Output of the Equation: Use of alternate commands of ←, →, and ⇔ Here is an example: % Arrow in mathematical formulas We only need to declare the appropriate arrow commands. We can use various types of arrows in mathematical mode in LaTeX in a pretty straightforward way. We can use the LaTeX arrow symbol both in mathematical formulas and text mode, even in pictures and margin indicators. The following multitude of arrow symbols require an additional package called amssymb: Description Here is a list of arrow LaTeX commands that can be used without loading any package: Description Arrows can be used in equations, text, pictures, and so on. In LaTeX, by default different types of arrow symbols are available. Others are obtained with LaTeX commands as the case with arrow symbols which is the purpose of this post! A few of them, such as +,-,, are produced by typing the corresponding keyboard characters. LaTeX has dozens of special mathematical symbols.
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