Using double I get 0. NET? (19 answers). 0/7. However, when I use a number whose decimal representation repeats, such as 1. But, in C++, when calling scanf and printf, the notation used to specify a double is "%lf", and that stands for long float, right? So while a float is less precise than a double, a LONG float (presumedly called long float because it can be "longer" by having more terms) is the same accuracy and therefore essentially the same thing? Oct 20, 2017 · From what I have read, a value of data type double has an approximate precision of 15 decimal places. C语言中，float和double都属于 浮点数。区别在于：double所表示的范围，整数部分范围大于float，小数部分，精度也高于float。 举个例子： 圆周率 3. L Specifies that a following a, A, e, E, f, F, g, or G conversion specifier applies to a long double argument. Promise. 947368421052631526 However, the former is correct. Dec 31, 2021 · I've read about the difference between double precision and single precision. e. So my question is why would you want to use a variable that is less precise in the first place? Does it have something to do with different platforms, different OS versions, different compilers? Dec 31, 2021 · I've read about the difference between double precision and single precision. 1415926535 这个数字，如果用float来表示，最多只能精确到小数点后面的6位。而double大约能精确到小数点后面的15位左右。具体精确到几位，跟所用的 编译器 L Specifies that a following a, A, e, E, f, F, g, or G conversion specifier applies to a long double argument. Why such an inco double** 是指向 double* 类型的指针类型。 区别不是很显然的吗？ double [5] 类型能隐式转换成 double* 类型，但它们不是同一类型。 可以考虑一下 short 和 long 这两种类型是能相互隐式转换的，但它们显然没有因此变成同一类型。 Feb 6, 2014 · I understand that float has a smaller range than double making it less precise, and from what I understand, long double is even more precise (?). using one or the other does not seem to affec double** 是指向 double* 类型的指针类型。 区别不是很显然的吗？ double [5] 类型能隐式转换成 double* 类型，但它们不是同一类型。 可以考虑一下 short 和 long 这两种类型是能相互隐式转换的，但它们显然没有因此变成同一类型。 494 A Double is not an Integer, so the cast won't work. The same rules specified for fprintf apply for printf, sprintf and similar functions. NET? (19 answers) Dec 31, 2021 · I've read about the difference between double precision and single precision. Also note that a Double is a Number, so it has the method intValue, which you can use to get the value as a primitive int. NET? (19 answers) C语言中，float和double都属于 浮点数。区别在于：double所表示的范围，整数部分范围大于float，小数部分，精度也高于float。 举个例子： 圆周率 3. Jun 12, 2011 · A Double in Java is the class version of the double basic type - you can use doubles but, if you want to do something with them that requires them to be an object (such as put them in a collection), you'll need to box them up in a Double object. 0, I find tha Apr 22, 2015 · Possible Duplicate: long double vs double I am unable to understand the difference between between long double and double in C and C++. Anything past that can't be trusted, even if you can make the compiler display it. 947368421052631578, and 947368421052631578 is the repeating decimal. 39 This question already has answers here: Double vs double in java [duplicate] (7 answers) Difference between decimal, float and double in . 0, I find tha Jun 19, 2012 · A double which is usually implemented with IEEE 754 will be accurate to between 15 and 17 decimal digits. Can anyone help? Jun 19, 2012 · Using long double I get 18/19 = 0. Note the difference between the Double class and the double primitive. Con los números que has probado no se ve diferencia porque cout << redondea la representación interna para mostrar pocos decimales, y lo que ves en ambos casos es lo mismo, pero internamente no son iguales. However, in most cases, float and double seem to be interchangeable, i. So my question is why would you want to use a variable that is less precise in the first place? Does it have something to do with different platforms, different OS versions, different compilers? C语言中，float和double都属于 浮点数。区别在于：double所表示的范围，整数部分范围大于float，小数部分，精度也高于float。 举个例子： 圆周率 3. 1415926535 这个数字，如果用float来表示，最多只能精确到小数点后面的6位。而double大约能精确到小数点后面的15位左右。具体精确到几位，跟所用的 编译器 Feb 10, 2022 · En double se pueden almacenar números más grandes y también más decimales. Oct 20, 2017 · From what I have read, a value of data type double has an approximate precision of 15 decimal places. using one or the other does not seem to affec C语言中，float和double都属于 浮点数。区别在于：double所表示的范围，整数部分范围大于float，小数部分，精度也高于float。 举个例子： 圆周率 3.

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