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  2. File:90 degree rotations expressed in radian measure.svg

    en.wikipedia.org/wiki/File:90_degree_rotations...

    What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL; Download QR code

  3. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    The azimuth angle θ appears to equal positive 90°, as rotated counterclockwise from the azimuth-reference x–axis; and the inclination φ appears to equal 30°, as rotated from the zenith–axis. (Note the 'full' rotation, or inclination, from the zenith–axis to the y–axis is 90°).

  4. File:ISO 3864 - Arrow D - Movement of Persons - 90 Degree.svg

    en.wikipedia.org/wiki/File:ISO_3864_-_Arrow_D...

    Date/Time Thumbnail Dimensions User Comment; current: 00:06, 8 December 2022: 171 × 147 (594 bytes): The Navigators: Uploaded a work by User:The Navigators from Drawn according to the standards laid out in {{w|ISO 3864|ISO 3864 - Graphical symbols — Safety colours and safety signs — Part 3: Design principles for graphical symbols for use in safety signs}}. with UploadWizard

  5. Rotation of axes in two dimensions - Wikipedia

    en.wikipedia.org/wiki/Rotation_of_axes_in_two...

    In mathematics, a rotation of axes in two dimensions is a mapping from an xy-Cartesian coordinate system to an x′y′-Cartesian coordinate system in which the origin is kept fixed and the x′ and y′ axes are obtained by rotating the x and y axes counterclockwise through an angle .

  6. Turn (angle) - Wikipedia

    en.wikipedia.org/wiki/Turn_(angle)

    The binary degree, also known as the binary radian (or brad), is ⁠ 1 / 256 ⁠ turn. [21] The binary degree is used in computing so that an angle can be represented to the maximum possible precision in a single byte. Other measures of angle used in computing may be based on dividing one whole turn into 2 n equal parts for other values of n. [22]

  7. Rotation - Wikipedia

    en.wikipedia.org/wiki/Rotation

    A sphere rotating (spinning) about an axis. Rotation or rotational motion is the circular movement of an object around a central line, known as an axis of rotation.A plane figure can rotate in either a clockwise or counterclockwise sense around a perpendicular axis intersecting anywhere inside or outside the figure at a center of rotation.

  8. The 90-10 Rule is a Better Way to Trim Your Nails - AOL

    www.aol.com/entertainment/90-10-rule-better-way...

    I once read an interview where Kim Kardashian mentioned that she always makes time for a manicure because even if everything else is in disarray, there’s something about having well-groomed ...

  9. Rotation matrix - Wikipedia

    en.wikipedia.org/wiki/Rotation_matrix

    A 180° rotation (middle) followed by a positive 90° rotation (left) is equivalent to a single negative 90° (positive 270°) rotation (right). Each of these figures depicts the result of a rotation relative to an upright starting position (bottom left) and includes the matrix representation of the permutation applied by the rotation (center ...