Update README.md

Author: tamaskis

README.md

@@ -1,2 +1,22 @@
-# c2d_euler
-Transforms a continuous transfer function to a discrete transfer function using the Euler (i.e. forward difference) method.
+# `c2d_euler`
+
+Transforms a continuous transfer function to a discrete transfer function using the forward and backward Euler methods.
+
+
+
+## Syntax
+
+`Hz = c2d_euler(Hs,T,'forward')` \
+`Hz = c2d_euler(Hs,T,'backward')`
+
+
+## Description
+
+`Hz = c2d_euler(Hs,T,'forward')` returns the discrete transfer function `Hz` obtained by applying the forward Euler (i.e. forward difference) transformation to a continuous transfer function `Hs`, where `T` is the sampling period.
+
+`Hz = c2d_euler(Hs,T,'backward')` returns the discrete transfer function `Hz` obtained by applying the backward Euler (i.e. backward difference) transformation to a continuous transfer function `Hs`, where `T` is the sampling period.
+
+
+## Additional Documentation and Examples
+
+See "DOCUMENTATION.pdf" for additional documentation and examples.