理解非數字浮點值：1。 ＃＃iff00，-1。 ＃ind00和-1。 ＃ind

Positive Infinity

1.#INF00 on Windowsinf on Linux

• This value represents a positive number that is too large to be represented as有限的浮點數。 It is typically encountered when performing operations like dividing a very large number by a very small number.
• Negative Infinity

-1.#IND00 on Windows-inf on Linux

• This value represents a negative number that is too large (absolute value) to be表示為有限的浮點數。 It can arise from operations like dividing a negative number by a very small number.
• NaN (Not-a-Number)

-1.#IND on Windowsnan on Linux

• NaN indicates that the result of an operation is undefined or 無效的。 This can occur when attempting to perform operations like taking the square root of a negative number or dividing by zero.
• Indeterminate (IND)

1.$NaN

這些非數值值可用於調試浮點代碼。例如：
• 正/負相無限可以通過零問題來識別溢出或分裂。
可以指向無效的操作，例如取消負數的平方根。