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  1. c语言中float、double的区别和用法? - 知乎

    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 …

  2. double 和 long double 有哪些区别? - 知乎

    The long double function prototypes are identical to the prototypes for their double counterparts, except that the longdouble data type replaces the double data type. The long double versions …

  3. What is the difference between float and double? - Stack Overflow

    Dec 31, 2021 · I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the …

  4. C语言中,double**和double (*) [5]有什么区别?怎么理解? - 知乎

    Nov 24, 2019 · 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 …

  5. c - 'float' vs. 'double' precision - Stack Overflow

    The 53 bits of double s give about 16 digits of precision. The 24 bits of float s give about 7 digits of precision.

  6. Correct format specifier for double in printf - Stack Overflow

    Format %lf in printf was not supported in old (pre-C99) versions of C language, which created superficial "inconsistency" between format specifiers for double in printf and scanf.

  7. c++ - double and accuracy - Stack Overflow

    Jun 19, 2012 · A double typically provides 16 (±1) decimal digits. Your example shows this: 4 8 12 16 v v v v 0.947368421052631578 long double 0.947368421052631526 double The answers …

  8. decimal vs double! - Which one should I use and when?

    Jul 22, 2009 · When should I use double instead of decimal? has some similar and more in depth answers. Using double instead of decimal for monetary applications is a micro-optimization - …

  9. 为什么double类型输入(scanf)用%lf,输出(printf)用%f?

    Feb 7, 2017 · 那么double有8字节空间,比4字节还大,能不能来放? 答案是不能。 因为float和double的关系不像int和long的关系那样,简单的在后面增加4字节的位置。 float和double有自 …

  10. java - add values to double [] arraylist - Stack Overflow

    1 Create the double[] first, add the numbers to it, and add that array to the List. (The variable should likely be declared as a List, btw, not an ArrayList, unless you're specifically passing it to …