diff --git a/examples/func_cap.sp b/examples/func_cap.sp
new file mode 100644
index 000000000..7894fb146
--- /dev/null
+++ b/examples/func_cap.sp
@@ -0,0 +1,14 @@
+* func_cap.sp
+
+
+.func icap_calc(A,B,C,D) '2*A*sqrt(B*C*D)'
+
+.param cap_val = 'max(icap_calc(1,2,3,4))'
+VDD 1 0 DC 1
+C1 1 0 'cap_val'
+
+.measure tran capacitance param='cap_val'
+
+.tran 1ps 100ps
+
+.end