Forgot to add change to rotateFromVectorBy attribute table.

Author: dirkschulze

matrix/index.html

@@ -623,9 +623,9 @@ <h3>Mutable transformation methods</h3>
             <dd>
               <dl class='parameters'>
                 <dt>unrestricted double x</dt>
-                <dd>The x coordinate of the vector (x,y). Must not be zero.</dd>
+                <dd>The x coordinate of the vector (x,y)<sup>T</sup>.</dd>
                 <dt>unrestricted double y</dt>
-                <dd>The y coordinate of the vector (x,y). Must not be zero.</dd>
+                <dd>The y coordinate of the vector (x,y)<sup>T</sup>.</dd>
               </dl>
               <p>Post-multiplies a rotation transformation on the current matrix. The rotation angle is determined by the angle between the vector (1,0)<sup>T</sup> and (x,y)<sup>T</sup> in the clockwise direction. If <code>x</code> and <code>y</code> should both be zero, the angle is specified as zero.</p>
               <p>The 2D rotation matrix is <a href="http://www.w3.org/TR/2012/WD-css3-transforms-20120911/#RotateDefined">described</a> in CSS Transforms where <code>alpha</code> is the angle between the vector (1,0)<sup>T</sup> and (x,y)<sup>T</sup> in degrees [[!CSS3-TRANSFORMS]].</p>