num = 3.14159265358979
print(round(num, 2))
3.14
num = 3.14159265358979
print(f"{num:.2f}")
3.14
num = 3.14159265358979
print("{:.2f}".format(num))
3.14
num = 3.14159265358979
print(format(num, ".2f"))
3.14
num = 3.14159265358979
print('%.2f' % num)
3.14