These are based on the IEEE 754 standard, which defines a binary standard for 32-bit floating point and 64-bit double precision floating point binary-decimal Numbers.
它们都依据IEEE 754标准，该标准为32位浮点和64位双精度浮点二进制小数定义了二进制标准。
2
On a 64-bit system, integral types are converted to 64-bit integral types, and single precision floating point types are promoted to double precision.
在 64 位系统上，整型被转换成 64 位的整型值，单精度的浮点类型被转换成双精度的浮点类型。
3
Mathematically precise calculations can be thrown severely askew by small round-off errors caused by finite-precision floating-point Numbers.