//! If there is a singularity on the surface the previous method
//! cannot compute the local normal.
- //! This method computes an approched normal direction of a surface.
+ //! This method computes an approached normal direction of a surface.
//! It does a limited development and needs the second derivatives
//! on the surface as input data.
//! It computes the normal as follow :
//! . if DNu/DNv or DNv/DNu is lower or equal than Real Epsilon
//! Done = False, the normal is undefined
//! . if DNu IsNull and DNv is Null Done = False, there is an
- //! indetermination and we should do a limited developpement at
+ //! indetermination and we should do a limited development at
//! order 2 (it means that we cannot omit Eps).
//! . if DNu Is not Null and DNv Is not Null Done = False, there are
//! an infinity of normals at the considered point on the surface.