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In older versions MySQL DECIMAL(3,2) meant 3 integers to the left of the DP and 2 to the right. The MySQL devs have since changed it so the first property (in this case '3') is the complete number of integers in the decimal (9.99 being three numbers), and the second property (in this case '2') stays the same — the number of decimal places.
Python 2.7 and 3.1 use the same length of str() although the repr() is fixed. Some old versions of Numpy had also excessive invalid digits, even with fixed Python. The current Numpy is fixed. Python versions >= 3.2 have the same results of str() and repr() function and also output of similar functions in Numpy.
I suppose it might mean that the OP is using decimal.Decimal and is unhappy with decimal context's precision which limits precision to n digits as in "n digits of precision in the strict sense" (e.g. '123.456' becomes Decimal('1.2E+2')) and not "n digits in the fractional part" (for Decimal('123.45'))...
Answer: 3/2 as a decimal is expressed as 1.5. Let us see how to convert 3/2 to a decimal. Explanation: To convert any fraction to decimal form, we just need to divide its numerator by the denominator. Here, the fraction is 3/2 which means we need to perform 3 ÷ 2. This gives the answer as 1.5. So, 3/2 as a decimal is 1.5. You can also verify ...
The syntax is the same as str.format() 's format string syntax, except you put a f in front of the literal string, and you put the variables directly in the string, within the curly braces. .2f indicates rounding to two decimal places: number = 3.1415926.
It's not number, it's numeric or decimal. You say numeric (10,2) allows 10 places before the decimal point, which is also wrong. numeric (10,2) allows for 10 total digits with 2 places after the decimal point. Range = -99999999.99 to 99999999.99. @G Mastros: It appears you are right on the precision point.
2. COMP-3 fields length is calculated as number of digits that we need to store + 1 divided by 2. For example to store an numeric field of value 987 we would required 3 +1 divided by 2 = 2 Hence an Comp-3 field of length 2 bytes can store a value of +999 to -999 as the limit. 15 would stored as 01 5C.
round("520", 2) returns the float 520, and echoing that will of course not show it to 2 decimal places. For the OP's purpose - showing an integer to 2 decimal places by padding it with trailing zeroes - you need a number formatting function, not a rounding function.
System.out.println("Quotient: " + quotient); System.out.println("Remainder: " + remainder); To get quotient in real number such that one number after decimal. System.out.println(a / b + "." + a % b * 10 / b); Note: In the last method it will not round the number up after the decimal. answered Feb 28, 2019 at 18:42.
.2 is saying that we want to take only 2 digits after decimal (the result will be same as a round() function) f is telling that it's a float number. If you forget f then it will just print 1 less digit after the decimal. In this case, it will be only 1 digit after the decimal. A detailed video on f-string for numbers https://youtu.be ...