## Math Notation Help

This glossary will help you build complex mathematical equations using the Tex markup language. This will involve using @@ or $$before and after the expression to display the desired results. Browse the glossary using this index Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL Page: (Previous) 1 ... 3 4 5 6 7 8 9 10 11 12 (Next) ALL ### P #### Psi (upper case greek letter)$$\Psi$$gives $\Psi$ ### R #### relativity $E=mc^2$  Keyword(s): relativity #### rho (lower case greek letter)$$\rho$$gives $\rho$ #### right only brace • Syntax: \left.{...\right} (note the dot!) • Ex.:$$\left.{{\rm~term1\atop\rm~term2}\right}=y$$gives $\left.{{\rm~term1\atop\rm~term2}\right}=y$ (\rm~something switches to roman style) #### root • Syntax: \sqrt[n]{arg} or simply \sqrt{arg} for \sqrt[2]{arg} • Ex.:$$\sqrt[3]{8}$$gives $\sqrt[3]{8}$ • Ex.:$$\sqrt{-1}$$gives $\sqrt{-1}$ • Nesting of roots (and combining with fractions, ...etc.) are possible. • Ex.:$$\sqrt[n]{\frac{x^n-y^n}{1+u^{2n}}}$$gives $\sqrt[n]{\frac{x^n-y^n}{1+u^{2n}}}$ • Ex.:$$\sqrt[3]{-q+\sqrt{q^2+p^3}}$$gives $\sqrt[3]{-q+\sqrt{q^2+p^3}}$  Keyword(s): square root ### S #### s.u.m$$\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 $\left[a,b\right]$

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