From MySQL docs: Fixed-Point Types (Exact Value) – DECIMAL, NUMERIC: In standard SQL, the syntax DECIMAL(M) is equivalent to DECIMAL(M,0) So, you are converting to a number with 2 integer digits and 0 decimal digits. Try this instead: CAST((COUNT(*) * 1.5) AS DECIMAL(12,2))
You can use bc as: echo “obase=2;$ip1” | bc See it
The Math.Round(…) function has an Enum to tell it what rounding strategy to use. Unfortunately the two defined won’t exactly fit your situation. The two Midpoint Rounding modes are: AwayFromZero – When a number is halfway between two others, it is rounded toward the nearest number that is away from zero. (Aka, round up) ToEven … Read more
In Python 3: >>> import struct >>> struct.unpack(‘!f’, bytes.fromhex(‘41973333’))[0] 18.899999618530273 >>> struct.unpack(‘!f’, bytes.fromhex(‘41995C29’))[0] 19.170000076293945 >>> struct.unpack(‘!f’, bytes.fromhex(‘470FC614’))[0] 36806.078125 In Python 2: >>> import struct >>> struct.unpack(‘!f’, ‘41973333’.decode(‘hex’))[0] 18.899999618530273 >>> struct.unpack(‘!f’, ‘41995C29’.decode(‘hex’))[0] 19.170000076293945 >>> struct.unpack(‘!f’, ‘470FC614’.decode(‘hex’))[0] 36806.078125
All this is about cultures. If you have any other culture than “US English” (and also as good manners of development), you should use something like this: var d = Convert.ToDecimal(“1.2345”, new CultureInfo(“en-US”)); // (or 1,2345 with your local culture, for instance) (obviously, you should replace the “en-US” with the culture of your number local … Read more
Use the str() builtin, which: Returns a string containing a nicely printable representation of an object. E.g: >>> import decimal >>> dec = decimal.Decimal(‘10.0’) >>> str(dec) ‘10.0’
In fact CultureInfo.InvariantCulture can be used here. The parameter expects IFormatProvider, an interface that CultureInfo implements. But InvariantCulture is invariant in the sense that it does not vary with the user’s settings. In fact, there is no culture that accepts either , or . as decimal separator – they are all one or the other. … Read more
You can use ToString() with the General (“G”) Format Specifier to achieve the desired result. Trailing zeros are truncated when using this format string with a precision specified. In order to prevent rounding in any situations, you will need to set the precision to the maximum allowed for decimals (29). The line of code to … Read more
Use Math.Round and specify the number of decimal places. Math.Round(pay,2); Math.Round Method (Double, Int32) Rounds a double-precision floating-point value to a specified number of fractional digits. Or Math.Round Method (Decimal, Int32) Rounds a decimal value to a specified number of fractional digits.
Contrary to that definition, epsilon is actually a concept used to eliminate the ambiguity of conversion between binary and decimal representations of values. For example, 0.1 in decimal doesn’t have a simple binary representation, so when you declare a double as 0.1, it is actually setting that value to an approximate representation in binary. If … Read more