理解非数字浮点值：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有限的浮点数。 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表示为有限的浮点数。 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 无效的。 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

这些非数值值可用于调试浮点代码。例如：
• 正/负相无限可以通过零问题来识别溢出或分裂。
可以指向无效的操作，例如取消负数的平方根。