The equation for the LSTM cell state is wrong in the user guide

Here is how it is currently:

c_t = f_t◦c_'(t-1) + i_t◦c_'t

Here is how it should be:

c_t = f_t◦c_(t-1) + i_t◦c_'t

What is “LSTM cell state”? Which user guide (name, version, page number)?

LSTM is long short-term memory, and it’s a new feature in the latest cuDNN (RC):

My suggestion for these types of reports would be to file a bug directly at

Thanks for reporting this issue. It will be fixed in the upcoming final release of cudnn v5