{"book":"adl0131","page":244,"text":"کتاب\n۲۳۳\nمساحت\n\nعمود یک ترکیب مستقیم نیست که در وقت پیمایش زمین باز یاده صحت\nقابل اعتبار دانسته شود و در جائیکه عمود زیاده در از باشد باید که\nاز ترکیب های مذکور هیچ ترکیب در عمل آورده نشود چراکه در زاویه تقا\nد ط ج بسا عث واقع شدن قدری مغالطه در مقام نقطه ج\nبسیار غلطی کلان پیدا خواهد شد و هر قدر که خط ف ج زیاده\nشده خواهد رفت همانقدر غلطی نیز زیاده شده خواهد رفت ـ\n(۱۸۶) بذریعهء (کراس) یعنی آله که بجهت پیمایش زمین استعمال\nمیشود پیمایش که کرده میشود مدعا صرف ازین نمیباشد که درست\nو صحیح مقام نقطه ف که از نقطه ج بالای الف ب عمود واقع میشود\nمعلوم میشود بلکه اصلی غرض نیست که طول خط ج ف را معلوم\nکنیم - در پیمایش کراس خوبی نیست که در دریافت\nکردن نقطه ف خوا ه بسیار غلطی کلان نیز باشد تا هم در معلوم\nکردن طول ج ف بسیار کم غلطی واقع خواهد شد -","chars":739,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00244.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/244","canvas":"https://afghanpress.org/iiif/adl0131/canvas/244","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."}}