Method dot

src/com/winvector/opt/def/LinUtil.java:15–22

(final double[] a, final double[] b)

	}
	
	public static double dot(final double[] a, final double[] b) {
		final int dim = a.length;
		double r = 0.0;
		for(int i=0;i<dim;++i) {
			r += a[i]*b[i];
		}
		return r;
	}

	public static double[] mult(final double[][] a, final double[] x, final double[] r) {
		final int m = a.length;