numeric and scalar types

Question 1

float 64 bit

Answer 1

1 - sign, 11-exponent, 52-fraction

Question 2

get float info

Answer 2

sys.float_info

Question 3

decimal context

Answer 3

decimal.getcontext()

Question 4

set precision on decimals

Answer 4

decimal.getcontext().prec = 6

Question 5

infinity decimal

Answer 5

decimal.Decimal(“Infinity”)

Question 6

-7//3

Answer 6

3

Question 7

import fractions

Answer 7

from fractions import Fraction

Question 8

create complex number

Answer 8

a=3+2j a=complex(‘(3+2j)’) a=complex(3,2)

Question 9

extract real from complex

Answer 9

a.real

Question 10

extract image from complex

Answer 10

a.imag

Question 11

get a conjugate

Answer 11

a.conjugate()

Question 12

module for complex

Answer 12

cmath

Question 13

get polar

Answer 13

modulus, phase = cmath.polar(1+1j)

Question 14

get phase of complex

Answer 14

cmath.phase()

Question 15

built-in function that gives distance from zero

Answer 15

abs()

Question 16

built-in function that perfoms decimal rounding

Answer 16

round(0.2825,3)

Question 17

convert to 16 base string

Answer 17

hex(52)

Question 18

convert to 8 base string

Answer 18

oct()

Question 19

date from timestamp

Answer 19

datetime.date.fromtimestamp(100000)

Question 20

get weekday (0,1,2,3,4,5,6) from date

Answer 20

d.weekday()

Question 21

year month and day from date

Answer 21

d.year d.month d.day

Question 22

get weekday(1,2,3,4,5,6,7)

Answer 22

d.isoweekday()

Question 23

combine date and time to datetime

Answer 23

datetime.datetime.combine(d, t)