Update 751-math-sech.markdown

Joe7M · web-flow · commit 851173a3ccae · 2022-10-16T17:33:18.000+02:00
diff --git a/_build/reference/751-math-sech.markdown b/_build/reference/751-math-sech.markdown
@@ -2,6 +2,12 @@
 
 > SECH (x)
 
-Secant.
+Hyperbolic secant.
 
+```
+a = sech(0.1)
+print a
 
+b = asech(a)
+print b
+```
