-
+
i
-
+
i
Polar
Polar
-
+
i
-
+
i
Polar
Polar
[
]
-1
Λ
∘
id
id
⌊
⌊
e
!
max
min
|
max
min
|
max
min
-
-
-
+
*
2
gcd
gcd
∧
∨
⊻
¬
for all
:
,
∃
,
:
̲
≠
≊
→
⇒
∈
∉
⊄
⊈
-
+
⊆
⊂
≥
≤
≡
ln
ln
log
log
log
log
d
d
d
d
d
d
d
d
Δ
2
|
|
⋃
⋂
\
∑
∏
=
∑
∏
lim
→
σ
σ
2
median
mode
det
T
⨯