convex angle
A positive angle is if it is at most 180 , i.e. π radians. Cf. the convex set.
A convex angle α is
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straight if α=180o,
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obtuse if 90o<α<180o,
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right if α=90o,
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acute if 0o<α<90o,
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skew if it is acute or obtuse.
Note. The angle between two curves (http://planetmath.org/ConformalMapping) which intersect each other in a point P means the angle between the tangent lines of the curves in P; such an angle may always be chosen acute or right.
Title | convex angle |
Canonical name | ConvexAngle |
Date of creation | 2013-03-22 14:48:07 |
Last modified on | 2013-03-22 14:48:07 |
Owner | pahio (2872) |
Last modified by | pahio (2872) |
Numerical id | 17 |
Author | pahio (2872) |
Entry type | Definition |
Classification | msc 51M04 |
Related topic | Quadrant![]() |
Related topic | SolidAngle |
Related topic | OrthogonalCurves |
Related topic | ComplementaryAngles |
Related topic | ContourLine |
Defines | straight angle |
Defines | obtuse angle![]() |
Defines | right angle |
Defines | acute angle |
Defines | straight |
Defines | obtuse |
Defines | right |
Defines | acute |