Index: Algebra I (Offline Edition)

This index lists important terms from the Algebra I offline course.

Symbols

$\ldots$ ellipsis (three lower dots) $19$
$\cdot$ centered dot for multiplication $12$
$\times$ multiplication symbol used with decimals $53$
÷ division symbol $54$
$/ \ $ forward slash, division symbol -
$a = b$ the mathematical sentence ‘$\,a\,$ equals $\,b\,$’ $23$
$x \lt y$ $x\,$ is less than $\,y$ $114$
$x \gt y$ $x\,$ is greater than $\,y$ $114$
$x \le y$ $x\,$ is less than or equal to $\,y$ $114$
$x \ge y$ $x\,$ is greater than or equal to $\,y$ $114$
$\mathbb{R}$ blackboard bold R, set of real numbers; $18$
$\mathbb{Z}$ blackboard bold Z, set of integers $22$
$10^n$ shorthand for $\,n\,$ factors of $\,10$ -
$\%$ percent symbol $54$
$\{\ \}$ braces $59$
$(\ )$ parentheses $59$
$[\ ]$ brackets $59$
$\in$ is in (membership symbol) $59$
$\notin$ is not in $61$
$x\in\Bbb R$ ex is a real number $74$
$\emptyset$ empty set $62$
$\{\ \}$ empty set (braces notation) $62$
$\infty$ infinity $62$
$kx^n$ write simple expressions in this form $227$
$kx^n$ write more complicated expressions in this form $228$
$kx^n$ write quite complicated expressions in this form $229$
$|x|$ absolute value of $\,x\,$ $331$
$\pm$ plus or minus $335$
$f(x)$ $f(x)$ notation -
$\text{dom}(f)$ notation for domain of a function -
$\text{ran}(f)$ notation for the range of a function -
$\cup$ union symbol -

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