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11th grade > Math flowers > Flashcards

Flashcards in Math flowers Deck (15):
1

2 petals

r2=a2sin2*

a is length of it

2

2 petals sin

diagonal

3

2 petals cos

straight across

4

sin2A

2sinAcosA

5

cos2A

cos^A - sin^A
1-2sin^A
2cos^A-1

6

rose courves

r=asin(n)*

a-length

#of petals- odd: n, even: times two

first petal: substitute a for r. 360/#ofpetals

7

spirals

plug in angle
r=n*

8

a <1

inner loop

9

a = 1
b

heart

10

1

dimple

11

a >_ 2
b

circle w/ flat surface

12

a+b

high point

13

a

stretch

14

a-b

negative: closer to high point
positive: further away from origin

15

convert polar to rectangle

x=rcos*
y= rsin*
y/x= tan*

r^=x^ + y^