x = 1+1j print(x, type(x)) print(22/7-1/7) from fractions import Fraction print(type(Fraction(22,7))) print(Fraction('0.25'), Fraction('7/8'), Fraction(0.1)) print(type(2/2)) print(-19//7, -19%7) # a = b * (a/b) = a%b -9= 2* (result) + (reminder) print(19//-7, 19%-7) #19 = -7 * (-3) +7 from math import floor print(floor(-1.9999)) print(floor(3.14)) print(round(2.56, 1)) # after comma round up/down to which decimal place print(round(22222.56, -1)) print(round(2.5)) print(round(3.5)) #sign(x) * int(abs(x)+0.5), round up ### ### ### ### ### x= 1,2,3 print(type(x),x) print(type(x), id(x)) #tuple DOESN"T need () !!!! x = [1,2,3] print(type(x),id (x)) print(x[0],x[1],x[2]) x[0] = 10 y = list(x) #change tuple to list print(type(y)) y[0] = 10 #rewrite x x = tuple(y) print(id(x), type(x)) x, y = 1, 2 # write 2 assignments in one tuple print(x,y) x, y= [1,2] print(x,y)