Minutes of an Hour, are set down according to the same Proportions of sines before suggested.
The angle corresponding to sine b is next found in a table of sines.
I have continued the sines of the Projection unto two severall revolutions, the one beginning at 77.
The interpolations are effected with the aid of a small table containing the logarithms of 72 sines.
He was the first to make use of sines instead of chords, and versed sines.
From this we say that the sines of the angles of incidence and refraction have a constant proportion or ratio to one another.
Fifthly, whether the images rise in proportion to the sines of the inclinations?
Gunter had as early as 1620 given the logarithms of sines and tangents on the sexagesimal scale, as far as seven decimals.
Now, as it happened, it was published at Nuremberg in 1533, and there was no table of sines in it.
Purbach had computed a table of sines to a radius of 600,000 parts.
trigonometric function, 1590s (in Thomas Fale's "Horologiographia, the Art of Dialling"), from Latin sinus "fold in a garment, bend, curve, bosom" (see sinus). Used mid-12c. by Gherardo of Cremona in Medieval Latin translation of Arabic geometrical text to render Arabic jiba "chord of an arc, sine" (from Sanskrit jya "bowstring"), which he confused with jaib "bundle, bosom, fold in a garment."