Slant is the predominant angle of the downward stroke in handwriting based on Latin script.
The slant of a sample of writing is a feature of many regional handwriting variations, and also a reflection of the copybook that is taught.
A good basis for its estimation is the point of the handwritten curve where the velocity has its peak value in the downward stroke.
Left-handed writing is often accompanied by a slant value which is larger than 90 degrees, i.e., it is bent backward, to the left.
In handwriting recognition, an affine transformation can be used to normalize handwritten input towards a population average or towards 90 degrees.