{"book":"adl0131","page":338,"text":"مساحت\n\n۳۲۶\n\nباشد بگذارید و بطرف چهارم که نشان ندارد شمالا جنوبا بگذشته\nبیرنگ مطلوب بطریق ذیل دریافت کرده میشود- فرض کنید که الف\nآن نقطه است که بیرنگ یعنی مقام یک چیز بلحاظ چیز دیگر مشاهده\nکرده میشود و فرض کنید که هر طرف سرتیر است طرف شمالی است\nو از بیرنگ الف تاب\n۲۱۰ درجه هاست چونکه\n\nدر اکثر (پروترکثیرها) نشان ۱۸۰ درجه ها میباشد پس عدد ۲۱۰\nبر نشان مذکور یکجا با هم پیوند نخواهند شد مگر نشان ۲۱۰ درجه ها\nدر سوم ربع دائره واقع خواهد شد و مقام آن از نقطه جنوب\n۱۸۰ - ۲۱۰ یا بر ۳۰ خواهد بود - یک نقطه یا خط بر درجه ۳۰ شصت\nپروترکثیر برداشته میشود پس در میان نقطه مذکور نقطه الف خط کشیده میشود\nخط کشیده مذکور سمت بیرنگ مطلوب میباشد (سیٹ سکوائر)\nلفظ انگریزی است نام آله است که بذریعه آله مذکور خطوط اکابر","chars":697,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00338.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/338","canvas":"https://afghanpress.org/iiif/adl0131/canvas/338","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."}}