Page:Organum mathematicum libris IX. explicatum (1668).djvu/225
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LOculamentum secundum Organi Mathematici, signtim littera B, continet Tabellas pro Geometria practica, quaerum usus et praxis elucet praecipue in dimensione altitudinem per earum umbras, tam rectas, quam versas; idque et cum, et sine Arithmetico calculo, qui molestam subinde create Tyronibus, preasertim inexercitatis. Ut tamen ad hanc quoque adfuescant Principes et Nobiles, addidit