What is the minimum value that double in c++ can represent?

The minimum representable value of the double data type in C is 4.9406564584124654 × 10^-324, calculated by the formula 2^-1074 * (1 2^-52).

The smallest representable value of the double data type in C

double is one of the floating point data types in C One, it can use 8 bytes (64 bits) to store numbers. Its smallest representable value is a non-zero positive number, which is determined by the following formula:

<code>最小值 = 2^-1074 * (1 + 2^-52)</code>

Converting this formula to decimal, we get:

<code>最小值 ≈ 4.9406564584124654e-324</code>

In other words, C The smallest representable value of the double data type in is approximately equal to 4.9406564584124654 × 10^-324.

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