In the Visual Studio 2010 watch window, I found the value of a variable became -1.#IND000. What does this mean?
Chun-Fu Chao
IND is the representation of NaN (Not a Number) in Windows system. IND = "indeterminate form", mostly a result from an illegal operation like dividing by zero or arithmetic operation with infinity.
It means the content is undefined, can result from a division by 0.
来源：https://stackoverflow.com/questions/9883128/what-does-1-ind000-mean-in-the-visual-studio-debug-window