## Math Notation Help

This glossary will help you build complex mathematical equations using the Tex markup language. This will involve using @@ or $$before and after the expression to display the desired results. Browse the glossary using this index Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL ### S #### s.u.m$$\sum_{n+2}^x$$is $\sum_{n+2}^x$  Keyword(s): sum #### sigma (lower case greek letter)$$\sigma$$gives $\sigma$ #### Sigma (upper case greek letter)$$\Sigma$$gives $\Sigma$ #### smiley$$~\unitlength{.6}~\picture(100){~~(50,50){\circle(99)}~ ~(20,55;50,0;2){+1$\hat\bullet}~~(50,40){\bullet}~~(50,35){\circle(50,25;34)}~ ~(50,35){\circle(50,45;34)}}$$is $~\unitlength{.6}~\picture(100){~~(50,50){\circle(99)}~ ~(20,55;50,0;2){+1\hat\bullet}~~(50,40){\bullet}~~(50,35){\circle(50,25;34)}~ ~(50,35){\circle(50,45;34)}}$  Keyword(s): smiley #### square bracket • Synatx: \left[...\right] • Ex.:$$\left[a,b\right]$$gives $\left[a,b\right]$ #### square root •$$\sqrt{a}$$or$$\sqrt~a$$gives $\sqrt~a$ • Use braces for terms with more than one character:$$\sqrt{x+y}$$gives $\sqrt{x+y}$ #### subscript • The command character "_" triggers subscription of the following expression(s). • For more than one subscripted character put them in braces {...}. • Use font sizing commands for appropriate sizing. • Ex.:$$x_1$$gives $x_1$ • Ex.:$$a_{m+2n}$$gives $a_{m+2n}$ • Ex. (with specific sizing):$$x_{\small1}=a_{\small{m+2n}}$$gives $x_{\small1}=a_{\small{m+2n}}$ • Combine subscripting with superscripting (command character "^"). Syntax: Expr_{subExpr}^{supExpr}. • Ex.:$$A_{\small{i,j,k}}^{\small{-n+2}}$$gives $A_{\small{i,j,k}}^{\small{-n+2}}$ #### sum (summation) • General syntax for symbols with a kind of lower and upper limits: \symbolname_{lowerexpression}^{upperexpression} • In general, there are two ways how these lower and upper expressions can be placed: centered below and above the symbol or in a subscript / superscript manner. In the first case the symbol name is preceded by the word "big", in the second there is no prefix. • Syntax for summation symbol:$$\bigsum_{i=k}^{n}$$gives $\bigsum_{i=k}^{n}$ and$$\sum_{i=k}^{n}$$gives $\sum_{i=k}^{n}$ • Use font size commands for a nicer picture:$$\LARGE\bigsum_{\small{i=1}}^{\small{n}}$$gives $\LARGE\bigsum_{\small{i=1}}^{\small{n}}$ and$$\large\sum_{\small{i=1}}^{\small{n}}$$gives $\large\sum_{\small{i=1}}^{\small{n}}$  Keyword(s): big sum #### superscript • The command character "^" triggers superscription of the following expression(s). • For more than one superscripted character put them in braces {...}. • Use font sizing commands for appropriate sizing. • Ex.:$$x^2$$gives $x^2$ • Ex.:$$a^{m+2n}$$gives $a^{m+2n}$ • Ex. (with specific sizing):$$x^{\small2}=a^{\small{m+2n}}$$gives $x^{\small2}=a^{\small{m+2n}}$ • Combine superscripting with subscripting (command character "_"). Syntax: Expr_{subExpr}^{supExpr}. • Ex.:$$A_{\small{i,j,k}}^{\small{-n+2}}$\$ gives

$A_{\small{i,j,k}}^{\small{-n+2}}$