--- abstract: 'A detailed analysis of the processes of a mental calculator (Gert Mittring) is given in this paper. It shows that seemingly exceptional tasks (e.g., mentally extracting the 137. root from a number with thousand figures within less than 20 seconds) can be described in the frame of conventional cognitive processes.' altloc: [] chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: - juebredenka@web.de creators_name: - family: Bredenkamp given: Jürgen honourific: '' lineage: '' date: 1990 date_type: published datestamp: 2009-09-07 10:16:06 department: ~ dir: disk0/00/00/66/20 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: - family: Feger given: Hubert honourific: '' lineage: '' eprint_status: archive eprintid: 6620 fileinfo: /style/images/fileicons/application_pdf.png;/6620/1/Bredenkamp_1990_Rechenkuenstler.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'Rechenkünstler, mental calculator, Gert Mittring' lastmod: 2011-03-11 08:57:24 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: ~ pubdom: TRUE publication: Wissenschaft und Verantwortung. Festschrift für Karl Josef Klauer publisher: 'Hogrefe, Göttingen' refereed: FALSE referencetext: ~ relation_type: [] relation_uri: [] reportno: ~ rev_number: 18 series: ~ source: ~ status_changed: 2009-09-07 10:16:06 subjects: - cog-psy succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: Kognitionspsychologische Untersuchungen eines Rechenkünstlers type: bookchapter userid: 78 volume: ~