This rounding error is the characteristic feature of floating-point computation.
这舍入误差的特征是浮点计算。
Indicates whether the object contains an imprecise computation, such as floating point operations.
指示对象是否包含不精确计算，如浮点运算。
The reason beyond this is that those fast algorithms do reduce the complexity of computing but still one needs to use floating-point arithmetic operations in the computation process.
原因是这些快速算法虽减少了计算复杂性，但在计算过程中仍需要大量浮点运算。
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