{"book":"adl0290","page":95,"text":"علم حساب ا\n۸۸\n(۱) - - - حاصل ضرب ۱۰۰ = ۳۸۰۰\n(۲) - - - حاصل ضرب ۲۵ = ۹۵۰\nحاصل ضرب ۷۵ = ۲۸۵۰ بعد از\nتفریق (۲) از (۱)\nج چون ضرب کدام عدد در ۱۲۵ مطلوب باشد بطرف\nراست مضروب ۳ صفر زیاده کرده بر ۸ تقسیم کنید\nمثلاً ۸۹×۱۲۵ = ۸۹۰۰۰ ÷ ۸ = ۱۱۱۲۵\nد و چون ضرب کدام عدد در ۹ یا ۹۹ یا ۹۹۹\nیا ۹۹۹۹ وغیره مطلوب باشد بطرف راست\nمضروب برابر تعداد هندسه ۹ اصفار بگذارید\nو از ماحصل خود آن عدد را تفریق کنید\nمثلاً ۳۴۵×۹۹ = ۳۴۵۰۰ - ۳۴۵ = ۳۴۱۵۵\nکا اگر ضرب کدام عدد در عددیکه با ۱۰ یا ۱۰۰ یا\n۱۰۰۰ یا ۱۰۰۰۰ اقرب است مطلوب باشد\nاکثریه طریق ذیل را استعمال می کنند\nمثال ۳۴۵ را در ۹۹۸ ضرب کنید :-\n۳۴۵×۱۰۰۰ = ۳۴۵۰۰۰\n۳۴۵×۲ = ۶۹۰\n۳۴۴۳۱۰ جواب","chars":606,"image":"https://storage.googleapis.com/adl-page-images/adl0290/00095.jpg","first_page":1,"last_page":1089,"title":"ʻIlm-i ḥisābعالم حساب","permalink":"https://afghanpress.org/book/adl0290/95","canvas":"https://afghanpress.org/iiif/adl0290/canvas/95","source":"https://afghanistandl.nyu.edu/books/adl0290/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0290_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."}}