Sunday, March 29, 2020, 8:57 AM
Site: Trinity Moodle
Course: Trinity Moodle (Home)
Glossary: Math Notation Help
S

#### square root

@@@sqrt{x}@@@  is @@sqrt(x)@@

#### subscript

underscore $$x_2$$  is   $x_2$

#### 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

$\large\sum_{\small{i=1}}^{\small{n}}$

#### superscript

$$x^2$$ or $$x^3$$ is $x^2$ or $x^3$
T

#### tau (lower case greek letter)

$$\tau$$ gives $\tau$

#### TeX

$TeX$  notation allows for the expression of ASCII characters to generate formatted graphics output

#### theta (lower case greek letter)

$$\theta$$ gives $\theta$

#### Theta (upper case greek letter)

$$\Theta$$ gives $\Theta$

#### times

$$a\times~b$$ gives $a\times~b$

#### triangle

$$\Delta$$ is $\Delta$