return new dojox.gfx.matrix.Matrix2D({yx: -Math.tan(angle)}); 
return new dojox.gfx.matrix.Matrix2D({yx: Math.tan(angle)}); 
	skewY: function(angle){		// summary: forms a y skewing matrix		// description: The resulting matrix is used to skew points in the y dimension		//		around the origin of coordinates (0, 0) by specified angle.		// angle: Number: an skewing angle in radians		return new dojox.gfx.matrix.Matrix2D({yx: -Math.tan(angle)}); // dojox.gfx.matrix.Matrix2D	},
5168	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5168/bfda1c9f1846eb67378f9313bc2f6a7339497b54/matrix.js/buggy/gfx/matrix.js