diff --git a/RunHypot.py b/Hypot.py
similarity index 97%
rename from RunHypot.py
rename to Hypot.py
index 506429e..e2b736c 100755
--- a/RunHypot.py
+++ b/Hypot.py
@@ -77,7 +77,6 @@ def plotspeed(N, pyrat, fortrat):
         ax.plot(N, fortrat, label="Fortran")
 
     ax.set_title(
-        "timeit(sqrt(a**2+b**2)) / timeit(hypot(a,b))\n"
         f"Numpy {np.__version__} Python {pyver} Gfortran {fortver}\n"
         f"{platform.system()} {platform.machine()}"
     )
@@ -85,6 +84,7 @@ def plotspeed(N, pyrat, fortrat):
     ax.legend(loc="best")
     ax.grid(True, which="both")
     ax.set_xlabel("N length of vectors a,b")
+    ax.set_ylabel("timeit(sqrt($a^2+b^2$)) / timeit(hypot(a,b))")
 
     figfn = bdir / "hypot.png"
     print("saved figure to", figfn)
diff --git a/README.md b/README.md
index 304eded..6900120 100644
--- a/README.md
+++ b/README.md
@@ -61,14 +61,10 @@ inf
 Execute the Hypot speed test by:
 
 ```sh
-python RunHypot.py
+python Hypot.py
 ```
 
-![Python 3.6 hypot() vs rsq()](.gfx/py36hypot.png)
-
-![Python 2.7 hypot() vs rsq()](./gfx/py27hypot.png)
-
-![Python 3.5 hypot() vs rsq()](./gfx/py35hypot.png)
+![hypot() vs rsq()](.gfx/hypot.png)
 
 ## Notes
 
diff --git a/gfx/hypot.png b/gfx/hypot.png
new file mode 100644
index 0000000..801d2f5
Binary files /dev/null and b/gfx/hypot.png differ