Matrix3.rotationZ constructor
      
      Matrix3.rotationZ(
    
- double radians
Rotation of radians around Z axis.
Implementation
factory Matrix3.rotationZ(double radians) =>
    Matrix3.zero()..setRotationZ(radians);Rotation of radians around Z axis.
factory Matrix3.rotationZ(double radians) =>
    Matrix3.zero()..setRotationZ(radians);