{"book":"adl0131","page":346,"text":"کتاب\n۳۳۵\nمساحت\n\nساق (کمپاس متناسبه) را از صفر بطرف حصه راست یعنی در نشان ۱۰۰۰ فِت\nخط هشتم را در متوازی بگذارید. و ساق دیگر آلهٔ مذکوره را بر قطر\nاول و نقطه تقاطع همین خطِ مذکور بگذارید پس بطریق مذکور فاصله\nمطلوب معلوم خواهد شد چراکه طول خط از صفر از قطر در تناسب\nذیل حاصل میشود\n\n۱۰۰ : ۵ :: ۱۰۰ : ۸\nپس د = ۸۰۰ فِت\nاگر خط که در طول ۱۳۴۰ فِت باشد و ساختن خطِ مذکور مطلوب\nباشد پس یک سَاق (کمپاس) را در سوم خطِ متوازی و بر نقطه\nتقاطع خط هزارم طرف راست بگذارید و ساق دیگر را بر چهارم\nقطر و بر نقطه تقاطع همان خط متوازی بگذارید پس بطریق مذکوره بالا\nفاصله مطلوب دریافت خواهد شد اگر پیمانه را مطلوب داشته\nباشید که در میل و فرلانگ تقسیم کنید. باید که بجای ده خطوط متوازی","chars":660,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00346.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/346","canvas":"https://afghanpress.org/iiif/adl0131/canvas/346","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."}}