# Numerics¶

## Comparisons¶

The following expressions can be used to compare numerical values (source: python3)

Python expression

Meaning

not(a)

not a

a == b

a equal b

a != b

a not equal b

a & b

a and b

a | b

a or b

a >= b

a greater equal b

a > b

a greater b

a <= b

a less equal b

a < b

a less b

## Operations¶

Binary operations are listed below (source: python3)

Python expression

Meaning

x + y

sum of x and y

x - y

difference of x and y

x * y

product of x and y

x / y

quotient of x and y

x // y

floored quotient of x and y

x % y

remainder of x / y

-x

x negated

abs(x)

absolute value or magnitude of x

complex(re, im)

a complex $re + i\times im$

c.conjugate()

conjugate of the complex number c

divmod(x, y)

the pair (x // y, x % y)

pow(x, y)

x to the power y

x ** y

x to the power y

x = 13
y = 5

print(x / y)  # division
print(x // y) # floored quotient
print(x % y)  # rest
print(divmod(x, y))

2.6
2
3
(2, 3)

print(pow(x, y))
print(x**y)

371293
371293

c = complex(x, y)
print(c)
print(c.real)
print(c.imag)

cc = c.conjugate()
print(cc)

print(c * cc)
print(abs(c))

(13+5j)
13.0
5.0
(13-5j)
(194+0j)
13.92838827718412

x = 11
print(x)

# x = x + 1
x += 1
print(x)

x *= 2
# x = x * 2
print(x)

# x = x / 3
x /= 3
print(x)

# x = x - 2
x -= 2
print(x)

11
12
24
8.0
6.0