Merge pull request #5235 from andresgottlieb/patch-1

doc/index.txt

@@ -8,7 +8,7 @@ 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.
+* **efficient symbolic differentiation** -- Theano does your derivatives for functions 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 errors.