calculating sens/accel after dpi change:

for cl_mouseaccelstyle 0:

new_sens = old_sens * (old_dpi / new_dpi)
new_accel = old_accel * [ (old_dpi / new_dpi) ^ 2 ] 
new_senscap = old_senscap * (old_dpi / new_dpi)


outdated:
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for cl_mouseaccelstyle 1:

new_sens = old_sens * ( old_dpi / new_dpi )
new_offset = old_offset * ( new_dpi / old_dpi )
new_senscap = old_senscap * (old_dpi / new_dpi)
cl_mouseaccel stays the same
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"I would like to know the way to calculate the sens for cg_zoomsenstivity 1 and cg_zoomsensitivity 0"

cg_zoomsensitivity 0 (old broken algorithm):
zoomsens = sens * 2 * arctan[ 0.75 * tan[cg_zoomfov/2] ] / 75
cg_zoomsensitivity 1 (corrected version):
zoomsens = sens * arctan[ 0.75 * tan[cg_zoomfov/2] ] / arctan[ 0.75 * tan[cg_fov/2] ]

evaluate in degree mode or convert to radians and then back to degrees.


thx to injx for all of those