Int¶

round up¶

https://stackoverflow.com/questions/2356501/how-do-you-round-up-a-number

round(2.3) # 2.0
int(2.3 + .5) # 2

math.ceil(4.2) # return int (python3) or float (python2)?
np.ceil(2.3)

float precision¶

math.ceil(10000000 * 0.00136) # 13601.0 from 13600.000000000002

// rounding down¶

floor division (also sometimes known as integer division). divide the first argument by the second and round the result down to the nearest whole number, equvalent to math.floor?

• if one of the operands is a float in floor division, then the output will be a float

  rounded_up = -(-numerator // denominator)