THE following discussion gives simple methods of directly trisecting angles which do not exceed 180°. The relations on which the methods are based, hold, however, up to 270°, but it would be difficult ...
THE Paralogistes pseudomathematicus has become so rare, or possibly so shy, that it is a real pleasure to find that the species is not extinct. Alack! that De Morgan is not with us, to do justice to ...
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