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Ann Catherine Jose

Math symbols test

Table of Contents

This page is deliberately kept as a draft in order to test the rendering of Latex content.

Equations

The equation has two solutions when , or :

$ax^2 + bx + c = 0$
$a \ne 0$, or $a \ne 0$: 
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$

Text formatting

  • Text Color - with orange , lightgreen , plum - all named colors
  • Font-size (large, huge, small, tiny) - , , , , , , , , ,
  • Font in fractions - In a regular polygon, Syntax: $\displaystyle\frac{180*(n-2)}{n}$
  • Spacing inside text
% Text Color
orange $\color{orange} ax + by = c$, lightgreen $\color{lightgreen} ax + by = c$

% Font-size (large, huge, small, tiny)
$abc$, $\large abc$, $\Large abc$, $\LARGE abc$, $\huge abc$, $\Huge abc$, $\small abc$
$\frac a b$, $\large \frac a b$, $\huge \frac a b$

% Font in fractions
$\displaystyle\frac{180*(n-2)}{n}$  Syntax: `$\displaystyle\frac{180*(n-2)}{n}$`

% Spacing inside text 
$a + b ~~~~~~~~=~~~~~~~~ 21$

Probability

Given n objects taken r at a time, number of permutations =

$_nP_r = P(n,r) = \large \frac{n!}{(n-r)!}$

Logarithms

  • means that . $log_b(x) = y$ means that $b^y = x$.
  • = y and = means that - when changes to , log(N) ==> log(N+1)
$log_b(x) = y$  means that $b^y = x$. `$log_b(x) = y$` means that `$b^y = x$`.
$log(N)$ = y and $2^{y+1}$ = $2^y * 2$ -> $2^{y}$ changes to $2^{y+1}$,  log(N) ==>  log(N+1)

Miscellaneous

  • Square root, Exponents - example of Not polynomials - , ,
  • Element of, Union, Open/closed parentheses - if intervals overlap, x > 3 OR x <= 5 = => =>
  • Line segments - Above the text arrow and a line segment
$\sqrt x$, $x ^ {-2}$, $m ^ {-1/2}$
$x \in (3, \infty) \cup (- \infty, 5]$ => $x \in (-\infty, \infty)$ => $-\infty < x < \infty$
$\overrightarrow {AB}$ and a line segment $\overline {AB}$


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