Trigonometric functions: Difference between revisions
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The [http://www.jsoftware.com/help/dictionary/dodot.htm circle functions] in J include trigonometric functions. Native operation is in radians, so values in degrees involve conversion.
Sine, cosine, and tangent of a single angle, indicated as pi-over-four radians and as 45 degrees
>,:(1&o. ; 2&o. ; 3&o.) (4%~o. 1), 180%~o. 45
0.707107 0.707107
0.707107 0.707107
1 1
Arcsine, arccosine, and arctangent of one-half, in radians and degrees
>,:([ , 180p_1&*)&.> (_1&o. ; _2&o. ; _3&o.) 0.5
0.523599 30
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