Some Mathematics
d 2
=∣
x
⇀ 1-x
⇀ 0-(
x
⇀ 2-x
⇀ 1)[
(x
⇀ 1-x
⇀ 0)⋅(x
⇀ 2-x
⇀ 1) ]∣
x
⇀ 2-x
⇀ 1 ∣ 2
∣ 2
x
+
y
2
k
+
1
a
0
+
1
a
1
+
1
a
2
+
1
a
3
+
1
a
4
Altra prova
∫
∫
D
dx
dy
andrea
1-
xeff
̂≠(
∫0∞
sin(
x~)
1/e
3βdx
)≠limx
→∞1
x
ciao
∑
k
=
1
7
x
k
k
!
∫
0
1
log
16
(
t
)
1
-
t
2
ⅆ
t
d
d
x
f
(
x
)
=
lim
h
→
0
f
(
x
+
h
)
-
f
(
x
)
h
TeX formatted
f
(
x
)
=
∑
n
=
0
∞
f
(
n
)
(
a
)
n
!
(
x
-
a
)
n
g
(
x
)
=
x
2
The quadratic formula is
-
b
±
b
2
-
4
a
c
2
a