{"book":"adl0290","page":53,"text":"علم حساب\n۴۶\nپس معلوم کنید که آن طالب علم چه قدر\nکم نوشته است؟\n۲۸ - هر گاه بالای چند اعداد یک خط عرضی\nمثل این کشیده شود یا چند اعداد مابین خطوط\nقوسی یا خطوط وحدانی ( ) { } [ ]\nنوشته شوند مقصود ازان این است که کل اعداد\nکه زیر خط عرضی یا مابین خطوط قوسی یا وحدانی\nنوشته شده اند از یک جنس میباشند و هر عدد از\nاعداد مذکور یکسان متاثر یعنی اثر پذیر میگردد مثلاً\n۲+۳ یا (۲+۳) یا {۲+۳} ازین مفهوم میشود\nکه آن علامت که از خطوط وحدانی برون است - عدد\n۲ و ۳ ازان یکسان اثر پذیر میشود *\nازین علامت ∴ معنی بنابر آن و ازین علامت\n∵ معنی چونکه تعبیر میشود *\n۲۹ - عددیکه پیش روی آن این علامت +\nنوشته باشد آن را عدد مثبت میگویند و عددیکه\nکه پیش روی آن این علامت - نوشته باشد آن را\nعدد منفی میگویند و اگر پیش روی عددی هیچ\nعلامت نوشته نباشد پیش روی آن علامت جمع","chars":740,"image":"https://storage.googleapis.com/adl-page-images/adl0290/00053.jpg","first_page":1,"last_page":1089,"title":"ʻIlm-i ḥisābعالم حساب","permalink":"https://afghanpress.org/book/adl0290/53","canvas":"https://afghanpress.org/iiif/adl0290/canvas/53","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."}}