{"book":"adl0131","page":245,"text":"مساحت\nکتاب\n۲۳۴\nمثلاً فرض کنید که بذریعه (کراس) ج\nنقطه پ بقسم ذیل معلوم کرده پ ب\nشده است که خط پ ج بالای خط الف ب عمود است حالا اگر\nعمود صحیح و درست محل وقوع نقطه ف بفاصله احاطه است از\nیعنی پ ف = ۱ احاطه و فرض کنید که\nف ج = ۲۰۰ حلقه پس\n(ج ف) + (پ ف) - پ ج\nو از عمل حساب واضح میشود که ده حلقه مقام ف از معین شدن ها\nاینطرف و آنطرف در طول ج ف از دو انچ هم غلطی کم واقع میشود (۲)\nبجائیکه پیمایش بطریق خوب میشود کل طریقه ها را در عمل نمی آرند او با\nکه بباعث آنها بسیار کمتر غلطی مشاهده غلطی نتایج را زیاده میکند اله\n(۱۸۷) در فصل مذکوره و فصل هفدهم بیان کرده شده است اله\nکه اعمال مساحت برای معلوم کردن رقبه های زمین ها ضرورت الم\nاز اینرو","chars":630,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00245.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/245","canvas":"https://afghanpress.org/iiif/adl0131/canvas/245","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."}}