diff --git a/autoload/ingo/math.vim b/autoload/ingo/math.vim
index dfc7289..d3c5d23 100644
--- a/autoload/ingo/math.vim
+++ b/autoload/ingo/math.vim
@@ -32,4 +32,31 @@ function! ingo#math#BitsRequired( num )
     return l:bitCnt
 endfunction
 
+"******************************************************************************
+"* PURPOSE:
+"   Return the power of a:x to the exponent a:y as a Number.
+"* ASSUMPTIONS / PRECONDITIONS:
+"   None.
+"* EFFECTS / POSTCONDITIONS:
+"   None.
+"* INPUTS:
+"   a:x Number.
+"   a:y Exponent.
+"* RETURN VALUES:
+"   Number.
+"******************************************************************************
+if exists('*pow')
+    function! ingo#math#PowNr( x, y )
+	return float2nr(pow(a:x, a:y))
+    endfunction
+else
+    function! ingo#math#PowNr( x, y )
+	let l:r = a:x
+	for l:i in range(a:y - 1)
+	    let l:r = l:r * a:x
+	endfor
+	return l:r
+    endfunction
+endif
+
 " vim: set ts=8 sts=4 sw=4 noexpandtab ff=unix fdm=syntax :