Description

Theano is a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. Theano features: * **tight integration with NumPy** -- Use `numpy.ndarray` in Theano-compiled functions. * **transparent use of a GPU** -- Perform data-intensive calculations up to 140x faster than with CPU.(float32 only) * **efficient symbolic differentiation** -- Theano does your derivatives for function with one or many inputs. * **speed and stability optimizations** -- Get the right answer for ``log(1+x)`` even when ``x`` is really tiny. * **dynamic C code generation** -- Evaluate expressions faster. * **extensive unit-testing and self-verification** -- Detect and diagnose many types of mistake. Theano has been powering large-scale computationally intensive scientific investigations since 2007. But it is also approachable enough to be used in the classroom (IFT6266 at the University of Montreal).