Calculate power and rotation of an obliquely placed prism based on a vertically and a horizontally placed prism:
Horizontal prism:
PD
Base out
Base in
Vertical prism:
PD
Base down dx
Base up dx
Base down sin
Base up sin
Calculate vertical and horizontal effect of one or two prisms defined by angle:
Right glass:
PD @
degrees
Left glass:
PD @
degrees