Vector operations
¥
Subtraction
¥
V = X
-
Y
Þ
v
i
= x
i
-
y
i
¥
Dot subtraction
¥
V = X
×
Y
Þ
v
i
= max (x
i
-
y
i
, 0)
¥
Complementary
¥
V = C(X)
Þ
v
i
= (1
-
x
i
/
c) * c
¥
etc.
Set operations