We would like to inform all readers that the Iranian Journal of Numerical Analysis and Optimization (IJNAO), has changed its publishing frequency from "Semiannual" to a "Quarterly" journal since January 2023. The four journal issues per year will be published in the months of March, June, September, and December. One of our goals is to continue to improve the speed of both the review and publication processes, while try continuing to publish the best available international research in numerical analysis and optimization, with the high scientific and publication standards that the journal is known for.

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The Iranian Journal of Numerical Analysis and Optimization (IJNAO) publishes original papers of high scientific value in all areas of numerical analysis and optimization. All research articles accepted and published by IJNAO are immediately freely available online to read, download and share, without any subscription charges or registration barriers.

 IJNAO is indexed in