{"book":"adl0131","page":278,"text":"کتاب ۲۶۷ مساحت\n\nرقبه شکل منحرف مقابله کرده در ذیل بیان مینمائیم -\nصرف ترکیب جریبی - بذریعه ترکیب جریبی خطوط الف ج\nو ج د و د الف و الف ب و ب ج را پیمائش میکنیم - بعد\nبذریعه طول های پیمائش شده نقشه را با پیمانه ها تیار میکنند\nو بعده عمود دف و ب ی را\nبذریعه پیمانه پیمائش کرده\nبذریعه مثلث ها رقبه کل زمین را بطریق ذیل معلوم میکنند\nکه ۱/۲ الف ج (ب ی + د ف) = رقبه منحرف -\nترکیب جریب و کراس - بذریعه ترکیب جریب و کراس\nخطوط الف ی و ی ب و ی ف و ف د و ف ج را پیمائش میکنند\nو بغیر کشیدن نقشه بذریعه طول های مذکور رقبه کل منحرف را\nدریافت میکنند و نیز ظاهر است که به نسبت جریبی ترکیب فاصله را\nطی کردن می افتد - پس همین وجه است که در (انگلستان)","chars":632,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00278.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/278","canvas":"https://afghanpress.org/iiif/adl0131/canvas/278","source":"https://afghanistandl.nyu.edu/books/adl0131/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0131_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}