WebAug 27, 2009 · What I meant is that you cannot round a float to n decimal places and then expect the result always have n decimal places. You will still get a float, just not the one you expected. – Andrew Keeton. Aug 28, 2009 at 3:28. Your first statement might sound true initially, but many languages do allow you to round one float into another. WebDec 13, 2010 · 1. There is a nice simple way to do it. int GetFirstDecimalPlace ( float f ) { const float dp = f - floorf ( f ); // This simply gives all the values after the // decimal point. return static_cast< int > ( dp * 10.0f ); // This move the value after the decimal // point to before it and then casts to an // int losing all other decimal places.
Why You Should Never Use Float and Double for Monetary Calculation…
WebMar 28, 2013 · (1) The exponent is biassed, by adding 127 to the actual exponent. (2) All except very small floats are normalized, and the leading 1 bit of a normalized float mantissa is not stored. – Patricia Shanahan Mar 28, 2013 at 17:05 3 Do you mean C or C++ (C has no references, only pointers) – wildplasser Oct 26, 2013 at 16:25 3 WebThe float number 254.73 may be converted to 254.7299957275390625000000. f-integer will give 0.7299957275390625000000. Now multiply it by 100 and use ceil function to get the smallest integer value not less than 72.99957275390625000000. int fractional_part_in_integer = ( (int)ceil (fractional*100)) % 100; fish point duck hunting facebook
Extracting decimal part of a float accurately - Stack Overflow
WebFeb 15, 2011 · The sound and perfect way to get decimal part of float and double data types, is using with String like this code: float num=2.35f; String s= new Float (num).toString (); String p=s.substring (s.indexOf ('.')+1,s.length ()); int decimal=Integer.parseInt (p); … WebDec 5, 2024 · Float is a single precision (32 bit) floating point data type and decimal is a 128-bit floating point data type. Floating point data type represent number values with fractional parts.... WebFeb 13, 2024 · Add a comment 3 Answers Sorted by: 7 Use numpy.modf, multiple by 100 and cast to integer s: df ['decimal'] = (np.modf (df ['dollars']) [0] * 100).astype (int) Or split by .: df ['decimal'] = df ['dollars'].astype (str).str.split ('.').str [1].astype (int) print (df) dollars Count decimal 0 56.46 2 46 1 196.69 3 68 2 78.12 2 12 fish po boy recipes