"Double triple quatra penta hexa." These are the inherent writing methods of multiples in English. The writing methods from double to 10 times are as follows: 2 times double, 3 times triple, 4 times quatra, 5 times penta, 6 times hexa, 7 times hepta, 8 times octa, 9. In C language, both float and double are floating point numbers. The difference is: the range represented by double, the range of the integer part is larger than that of float, and the precision of the decimal part is also higher than that of float. For example: The number pi 3.1415926535, if you use float. 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.
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Comparison of double type calculations in C# During my daily routine, I encountered a relatively basic problem today. The addition of two double type data is compared with the third double type data to determine whether they are equal. Calculate with a calculator. The Double [5] type can be implicitly converted to the double* type, but they are not the same type. You can consider that the two types short and long can be implicitly converted to each other, but they obviously do not become the same type.
