To determine whether it’s close enough to zero that it will print as 0.000000 to six decimal places, something like: fabs(d) < 0.0000005 Dealing with small inaccuracies in floating-point calculations can get quite complicated in general, though. If you want a better idea what value you’ve got, try printing with %g instead of %f.
Thanks for @pankaj hint, Here i resolved it via this query… SELECT SUM(IF(month=”Jan”, total, 0)) AS ‘Jan’, SUM(IF(month=”Feb”, total, 0)) AS ‘Feb’, SUM(IF(month=”Mar”, total, 0)) AS ‘Mar’, SUM(IF(month=”Apr”, total, 0)) AS ‘Apr’, SUM(IF(month=”May”, total, 0)) AS ‘May’, SUM(IF(month=”Jun”, total, 0)) AS ‘Jun’, SUM(IF(month=”Jul”, total, 0)) AS ‘Jul’, SUM(IF(month=”Aug”, total, 0)) AS ‘Aug’, SUM(IF(month=”Sep”, total, 0)) … Read more
Unit identifiers are optional, but there is no noted performance increase (although you are saving two characters). CSS2 – From W3C CSS 2.1 Specification for Syntax and basic data types: The format of a length value (denoted by <length> in this specification) is a <number> (with or without a decimal point) immediately followed by a … Read more
There are a few different ways of doing this. I prefer using apply, since it’s easily extendable: ##Generate some data dd = data.frame(a = 1:4, b= 1:0, c=0:3) ##Go through each row and determine if a value is zero row_sub = apply(dd, 1, function(row) all(row !=0 )) ##Subset as usual dd[row_sub,]
The JLS 3.10.1 describes 4 ways to define integers. An integer literal may be expressed in decimal (base 10), hexadecimal (base 16), octal (base 8), or binary (base 2). An octal numeral consists of a digit 0 followed by one or more of the digits 0 through 7 … A decimal numeral is either the … Read more
SELECT c.name, count(m.mailid) FROM Employee LEFT JOIN mailingSubscriptions as m ON c.Name = m.EmployeeName GROUP BY c.name;
Check out −0 (number) in Wikipedia Basically IEEE does actually define a negative zero. And by this definition for all purposes: -0.0 == +0.0 == 0 I agree with aaronasterling that -0.0 and +0.0 are different objects. Making them equal (equality operator) makes sure that subtle bugs are not introduced in the code. Think of … Read more
This will happen if you bound the value to a primitive instead of its wrapper representation. The primitive int always defaults to 0 and the primitive double always defaults to 0.0. You want to use Integer or Double (or BigDecimal) instead. E.g.: public class Bean { private Integer number; // … } Then there are … Read more
It is safe to expect that the comparison will return true if and only if the double variable has a value of exactly 0.0 (which in your original code snippet is, of course, the case). This is consistent with the semantics of the == operator. a == b means “a is equal to b“. It … Read more
Yes, 0 is an Octal literal in C++. As per the C++ Standard: 2.14.2 Integer literals [lex.icon] integer-literal: decimal-literal integer-suffixopt octal-literal integer-suffixopt hexadecimal-literal integer-suffixopt decimal-literal: nonzero-digit decimal-literal digit octal-literal: 0 <——————–<Here> octal-literal octal-digit