From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Table of values and a plot for the function sin 2(50 + θ).
| Identifier | ExFiles\Box 61b\4\ scan0005 | |
| Date | 6th January 1921 guessed | |
| (f) = sin 2 (50 + θ) Table of values: θ y 0 .985 5 .940 10 .867 15 .767 20 .643 25 .500 30 .342 35 .174 Graph: Plot Label: sin 2 (50° + θ) X-axis (θ): 0, 5, 10, 15, 20, 25, 30, 35, 40 Y-axis: 1.0, .9, .8, .7, .6, .5, .4, .3, .2, .1, 0 | ||