round函数只能对浮点数(写出来的1.2不是真的1.2,见上文)进行ROUND HALF EVEN舍入,decimal模块的接口就是对真的小数进行舍入: >>> Decimal('1.265').quantize(Decimal('.00'), rounding=ROUND_HALF_EVEN) Decimal('1.26') >>> Decimal('1.275').quantize(Decimal('.00'), rounding=ROUND_HALF_EVEN) Deci...
ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_EVEN (to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going awayfromzero),orROUND_UP (awayfromzero). ROUND_05UP (awayfromzeroiflast digit after rounding towards zero would have bee...
ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_EVEN (to nearest with ties going to nearest even integer), ROUND_HALF_UP (to nearest with ties going awayfromzero),orROUND_UP (awayfromzero). ROUND_05UP (awayfromzeroiflast digit after rounding towards zero would have bee...
ceil(num / 2) * 2 print(round_up_to_nearest_even_number(3.1)) # 👉️ 4 print(round_up_to_nearest_even_number(8.6)) # 👉️ 10 # --- # ✅ round a number DOWN to the nearest even number def round_down_to_nearest_even_number(num): return math.floor(num / 2) * 2 ...
Round to nearest, ties to even – rounds to the nearest value; if the number falls midway it ...
# even choice print(round(5.5)) Run Code Output 10 11 6 Here, round(10):rounds the integer to10 round(10.7):rounds the float10.7to nearest integer,11. round(5.5):rounds the float5.5to6. Example 2: Round a number to the given number of decimal places ...
ROUND_CEILING(towards Infinity),ROUND_DOWN(towards zero),ROUND_FLOOR(towards-Infinity),ROUND_HALF_DOWN(to nearest with ties going towards zero),ROUND_HALF_EVEN(to nearest with ties going to nearest even integer),ROUND_HALF_UP(to nearest with ties going away from zero),orROUND_UP(away from ...
ROUND_DOWN (towards zero),ROUND_FLOOR (towards -Infinity),ROUND_HALF_DOWN (to nearest with ties going towards zero),ROUND_HALF_EVEN (to nearest with ties going to nearest even integer),ROUND_HALF_UP (to nearest with ties going away from zero), or ROUND_UP (away from zero).ROUND_05UP...
Finally, to round to the nearest integer using the rounding half to even strategy, use np.rint(): Python >>> np.rint(data) array([[-1., -2., -1., 1.], [ 1., 1., -0., 0.], [-0., -1., 0., -1.]]) You might have noticed that a lot of the rounding strategies...
Since Python 3.0, round() uses banker's rounding where .5 fractions are rounded to the nearest even number:>>> round(0.5) 0 >>> round(1.5) 2 >>> round(2.5) 2 >>> import numpy # numpy does the same >>> numpy.round(0.5) 0.0 >>> numpy.round(1.5) 2.0 >>> numpy.round(2.5)...