**Floating-point cheat sheet for Python**

print Decimal((a-b)/a) print float((a-b)/a) both with the same result. it works if I make a = 9.0 but I wanted to see if there was anything I can do without changing the variables.... import math math.ceiling(x) #Round up: where x is a float type (decimal, basically) math.floor(x) #Round down: where x is again a float type Rounding automatically In Python you would use the built in function Scott suggested in his answer, round (number[, ndigits]) , where ndigits is an optional argument.

**fractions â€“ Rational Numbers Python Module of the Week**

Floating-Point Types. Almost all platforms map Python floats to IEEE 754 double precision. f = 0.1 Decimal Types. Python has an arbitrary-precision decimal type named Decimal in the decimal module, which also allows to choose the rounding mode....The truncate() function works by first shifting the decimal point in the number n three places to the right by multiplying n by 1000. The integer part of this new number is taken with int().

**How to implement currency rounding. learnpython - reddit**

1.14.1. Floats, Division, Mixed Types¶ As you moved on in school from your first integer division to fractions and decimals, you probably thought of 6/8 as a fraction and could convert to a decimal .75. how to get off the dangerous offenfders list If I have a string that contains decimal values, how can I split it to keep the decimals intact? For example: Rhino123.45Python987.654. I want the results to look like this:. How to know if he is the one

## How To Keep The Decimals In Python

### Mathematical Modules in Python Decimal and Fractions

- rounding Round up to Third decimal Place in Python
- [Python] Decimals to fraction strings Grokbase
- How to write a Python program to input any binary number
- Issue 4796 Decimal to receive from_float method Python

## How To Keep The Decimals In Python

### Python includes the round() function which lets you specify the number of digits you want. From the documentation: round(x[, n]) Return the floating point value x rounded to n digits after the decimal point.

- Both binary and decimal floating point are implemented in terms of published standards. While the built-in float type exposes only a modest portion of its capabilities, the decimal module exposes all required parts of the standard.
- Well, in keeping with the comp.lang.python tradition of drifting off-topic, there actually is a sense, due to Dirichlet, in which 1/3 is a better approximation to 0.6667.
- The Python code in ActiveCode 1 implements the Divide by 2 algorithm. The function divideBy2 takes an argument that is a decimal number and repeatedly divides it by 2. Line 7 uses the built-in modulo operator, %, to extract the remainder and line 8 then pushes it on the stack.
- Consider using the Decimal class (in the standard libraries since Python 2.4). I know this isn't the direct and obvious answer to your question (round(myfloat,2)) but I'm going beyond the simple issue of rounding and suggesting that you look at the broader issues related to …

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