What is Mathematical notation?
{{for|a list of symbols|List of mathematical symbols}} '''Mathematical notation''' is a system in [[mathematics]] that uses symbols to represent objects and ideas. In mathematics and other exact sciences like [[physics]] or [[computer science]], problems often need to be presented in some way. In such representations, different [[symbol]]s have different meanings: *There are [[number]]s, like ''1'' and ''2'', or [[variable]]s that stand for such numbers (like ''x'' and ''y'') *There are [[function (mathematics)|functions]] that act on numbers and variables. Such function take a predetermined number of elements, and do something with them. An example is ''+'', which [[addition|adds]] two numbers *There are concepts of advanced mathematics such as [[limit (mathematics)|limits]] and [[derivative]]s Some mathematical notations use [[diagram]]s, or small drawings to show the underlying concepts. One example is the [[Penrose graphical notation]] which is used to show [[tensor]]s. Another examples are [[Coxeter–Dynkin diagram]] which are used for certain problems of [[geometry]]. There are different ways to write down an ''equation'' like '' two and three'' *[[Infix notation]]: The functions and the symbols they act on, are mixed, this gives '' 2 + 3'' *[[Prefix notation]]: First there is the function, and then the values it operates on. This gives ''+ 2 3''. Computer languages influenced by [[lambda calculus]], like [[LISP]] use this notation. Sometimes this is called ''polish notation'' *[[Postfix notation]]: First there are the numbers, and then the function. ''2 3 +''. [[Postscript]] uses this. It is also generally known as ''reverse polish notation'' ==Related software== * [[KaTeX]] - [[JavaScript]] library that shows mathematical notation on any [[web browser]] * [[LaTeX]] - [[Free software]] to output mathematical notations on a [[PDF]] {{Math-stub}} [[Category:Mathematical notation| ]] [[he:סימון מתמטי]]