Francisci Vietæi Opera mathematica : in quibus tractatur Canon mathematicus, seu ad triangula : item canonion triangulorum latetum rationalium, vnà cum Vniuersalium inspectionum ad canonem mathematicum, libro singulari (1589)
AD CANQNEM MATHEMATICVM, LIBER SINGVLARIS. 47 4., Seffio Trianguli datorum laterum ad adfequendos angulos. … DK;S"'VI7Cir^Vfuper“ful° A' VC P°l°.&^eum producuntur latera data, vel ipfc eafecando contra- int,prout Aii, vel A D lunt quadrante maiora, vel minora.Comode vero AB latus: i minus quadrate femper efto. &ita. Duo confli tuuntur Triangula, aD, & * CB, quorum adfequutione totum Triangulum patefit, ‘…
Mathematics · Trigonometry
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from Epytoma Ioa[n]nis de Mo[n]te Regio in Almagestu[m] Ptolomei](https://img.insideoutlibrary.com/img/200/ia-EpytomaIoannisd00Regi-96-0.webp)
