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Trigonometric functions
Reading time: 1minTrigonometric functions started in the basic geometry of triangles, but now they comprise a complex field that's a central subject of calculus. Trigonometric functions have two modes of work: in degrees and in radians. See the Document settings section.
| Trigonometric functions | |
|---|---|
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Number pi This is useful when working with radians. π≈3.1416 |
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Angle degree |
| Direct | |
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Sine, related to the side opposite the angle |
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Cosine, related to the side adjacent to the angle |
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Tangent, sin/cos |
| Reciprocal | |
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Cosecant, 1/sin |
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Secant, 1/cos |
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Cotangent, 1/tan |
| Inverse | |
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This is one of the many angles whose sine is the given number. It's the one in [-π/2,π/2]. |
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This is one of the many angles whose cosine is the given number. It's the one in [0,π]. |
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This is one of the many angles whose tangent is the given number. It's the one in (-π/2,π/2). |
You can use the Simplify action to force non-trivial simplifications over trigonometric expressions. Moreover, the Verify action can test for trigonometric identities.