Peter J. G. Vlaar, On the Asymptotic Distribution of Impulse Response Functions with Long-Run Restrictions, Econometric Theory, Vol. 20, No. 5 (Oct., 2004), pp. 891-903 ...

National 5 Working with the graphs of trigonometric functions Example Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points.