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| Real | Length2 (const Vec2 &v) |
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| Real | Length (const Vec2 &v) |
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| bool | Equal (const Vec2 &v1, const Vec2 &v2, Real ephilon=EPSILON) |
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| bool | Equal (const Mat2 &m1, const Mat2 &m2, Real ephilon=EPSILON) |
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| Real | Dot (const Vec2 &v1, const Vec2 &v2) |
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| Vec2 | Normalize (const Vec2 &v) |
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| Vec2 | CompMultiply (const Vec2 &v1, const Vec2 &v2) |
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| Vec2 | CompDivide (const Vec2 &v1, const Vec2 &v2) |
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| Vec2 | operator* (const Vec2 &v, const Mat2 &m) |
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| Vec2 | operator* (const Mat2 &m, const Vec2 &v) |
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| Real DLLEXPORT_OST_GEOM | Det (const Mat2 &m) |
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| Mat2 DLLEXPORT_OST_GEOM | Transpose (const Mat2 &m) |
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| Mat2 DLLEXPORT_OST_GEOM | Invert (const Mat2 &m) |
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| Real DLLEXPORT_OST_GEOM | Angle (const Vec2 &v1, const Vec2 &v2) |
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| Real DLLEXPORT_OST_GEOM | SignedAngle (const Vec2 &v1, const Vec2 &v2) |
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| Mat2 | operator* (const Mat2 &m1, const Mat2 &m2) |
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| Vec2 | Min (const Vec2 &v1, const Vec2 &v2) |
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| Vec2 | Max (const Vec2 &v1, const Vec2 &v2) |
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| DLLEXPORT Vec2 | Rotate (const Vec2 &v, Real ang) |
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