Easing Equations by Robert Penner

Used in Qt Core (QEasingCurve).

The sources can be found in qt-everywhere-src-5.11.2/qtbase/src/3rdparty/easing.

Copyright (c) 2001 Robert Penner

BSD 3-clause "New" or "Revised" License.

Copyright (c) 2001 Robert Penner
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