Jump to main content
3
B
l
u
e
1
B
r
o
w
n
Home
Talent
Patreon
Store
Extras
About
Q
&
A
w
i
t
h
G
r
a
n
t
S
a
n
d
e
r
s
o
n
(
3
b
l
u
e
1
b
r
o
w
n
)
A simple Q&A
Aug 24, 2018
Lesson by
Grant Sanderson
Source
Previous Lesson
Why slicing a cone gives an ellipse
Next Lesson
Visualizing quaternions (4d numbers) with stereographic projection