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  1. Jan 19, 2009 · use decimal module for fast correctly-rounded decimal floating point arithmetic: d = Decimal(10000000.0000009) to achieve rounding: d.quantize(Decimal('0.01')) will result with Decimal('10000000.00') make the above DRY: def round_decimal(number, exponent='0.01'): decimal_value = Decimal(number) return decimal_value.quantize(Decimal(exponent)) or

    • Using the round() function # We can use Python’s inbuilt round() function to round off our numbers which are passed into the constructor as a parameter.
    • Using the % operator # If you come from a C language background, then you must be very familiar with using the % operator in print statements.
    • Using the str.format() method # format() is a very useful method while programming in python and thus, it also has its usage in limiting floats up to decimals.
  2. Aug 31, 2023 · In this Byte, we explored different ways to limit a float's decimal points in Python using the round(), format(), and Decimal module. We also discussed the difference between rounding and truncating decimal points.

  3. I want to print the list of floats, [-3.6499999999999999, 9.1699999999999999, 1.0] with 2 decimal points only. Doing something along the lines of '%.1f' % round(n, 1) would return a string. How can I return a list of all two decimal points of floats, and not strings?

  4. Aug 9, 2024 · In Python, we can handle precision values using Decimal Module. In this example, we will see How to Limit Float to Two Decimal Points in Python. In Python float precision to 2 floats in Python, and in Python float precision to 3. There are many ways to set the precision of the floating-point values.

  5. Learn 5 different ways to round off a float number to a specified number of decimal places in Python, using round() function, f-string, str.format(), % operator...

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  7. Oct 24, 2024 · The .2 in %2f specifically controls how many decimal points to round a float to – in this case 2 decimal places. Here‘s a quick example: This works by first converting the float value to a string with full available precision – up to sys.float_info.dig digits in Python 3. Then it indexes into the string to truncate everything past the ...

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