What is the difference between float and double? - Stack Overflow 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 other does not seem to affec
C语言中，double**和double (*) [5]有什么区别？怎么理解？ - 知乎 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。
c++ - Double precision - decimal places - Stack Overflow From what I have read, a value of data type double has an approximate precision of 15 decimal places However, when I use a number whose decimal representation repeats, such as 1 0 7 0, I find tha
Difference between long double and double in C and C++ Possible Duplicate: long double vs double I am new to programming and I am unable to understand the difference between between long double and double in C and C++ I tried to Google it but was unab
Should I use double or float? - Stack Overflow A double has a much higher precision due to it's difference in size If the numbers you are using will commonly exceed the value of a float, then use a double Several other people have mentioned performance isssues That would be exactly last on my list of considerations Correctness should be your #1 consideration