Create differential.py

1 files changed, 10 insertions, 0 deletions

diff --git a/entries/Tarcisio-Teixeira/differential.py b/entries/Tarcisio-Teixeira/differential.py
new file mode 100644
index 0000000..8abbdae
--- /dev/null
+++ b/entries/Tarcisio-Teixeira/differential.py
@@ -0,0 +1,10 @@
+from sympy import *
+
+def fib(n):
+  x = symbols('x')
+  f = diff(1/(1-x-x**2),x,0)
+  fact = 1
+  for i in range(1,n):
+    f = diff(f,x)
+    fact *= i
+  return f.subs(x,0)/fact