Actually, you can do it without any builtins using the // operator: ... >>> round(15.) >>> round(25.) Of course, this always rounds down. If you want to round up for values with a remainder greater than 5, you could use divmod: n, remainder = divmod(x, 10) …

Jul 16, 2013 · to do it without math just use strings (it still uses math) "%0.1f" % my_num_to_round

Write code that rounds a float number up or down without using the round() function introduced in Section 1.7. That is, write code that asks for a number, and then it takes that number and rounds it up or down appropriately without using round.

There are different ways to round the number in python without using the round function. In this article we will mostly talk two ways: Syntax: Rounding all number. Output: What to use instead of round function?

Sep 4, 2023 · user_input = int(input("Number of digits to round to: ") rounding = 10 ** user_input mypi = int(pi * rounding) / rounding Or if you want to do it a bit more concisely: mypi = int(pi * (rounding := 10 ** user_input)) / rounding

I want my program to round a value to two decimal places and keep it as a float instead of a string. For example, a = format(1624/164, ".2f") '9.90'…

Dec 8, 2023 · The round_() function in NumPy rounds the elements of an array to a specified number of decimal places. This function is extremely useful when working with floating-point numbers and when precision is important in scientific computing or data analysis. Syntax: numpy.round_(arr, decimals=0, out=None)

Apr 1, 2025 · Q #4) How do you round off without using the round function in Python? Answer: To round up or down without the built-in round(), we first multiply the number to be rounded by 10.0 n, where n is the decimal place to keep. Then, we use math.trunc() for truncation, math.ceil() for rounding up or math.floor() for rounding down.

Jun 28, 2023 · In this tutorial, we have seen two methods which can replace the math.ceil() function for calculating the ceiling of floating point data types. The round() function is one of the most popular substitutes for this followed by the next more mechanical method of …

Mar 25, 2015 · Without "rounding", thus truncating the number. import decimal from decimal import ROUND_DOWN decimal.getcontext().prec=4 pi*1 #print Decimal('3.142') decimal.getcontext().rounding = ROUND_DOWN pi*1 #print Decimal('3.141')