fix typo.

js/pixl/public/matrix.js

@@ -101,7 +101,7 @@ matrix.rotateZ = function(angle) {
	];
}
matrix.persective = function(fov, aspect) {
matrix.perspective = function(fov, aspect) {
	return [
		Math.PI / 3 / aspect, 0, 0, 0,
		0, Math.PI / 3, 0, 0,

js/pixl/public/trixl.html

@@ -157,7 +157,7 @@
					matrix.rotateX(angle.x / 10),
					matrix.translate(pos[0] + offset.x, pos[1] + offset.y, pos[2] + offset.z),
					view,
					matrix.persective(Math.PI / 3, aspect)
					matrix.perspective(Math.PI / 3, aspect)
				);
			}
			var t = transform([0.0, 0.0, 2]);