Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Janis Papanagnou Newsgroups: comp.lang.awk Subject: Operator precedence Date: Thu, 23 May 2024 16:13:33 +0200 Organization: A noiseless patient Spider Lines: 20 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Date: Thu, 23 May 2024 16:13:42 +0200 (CEST) Injection-Info: dont-email.me; posting-host="bf116be3e1a9b97e20c69753416c3d06"; logging-data="1889551"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+iEE8NKD4omb8m3jmV2VbK" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 Cancel-Lock: sha1:qEbXVBHzo8yad+TsTkmwmF25h/w= X-Mozilla-News-Host: news://news.eternal-september.org:119 X-Enigmail-Draft-Status: N1110 Bytes: 1517 After reading an old article in the Algol bulletin about questions and issues with operator precedences I tried this with (Gnu) Awk $ awk 'BEGIN { a=5; print a^2, -a^2, 0-a^2 }' 25 -25 -25 and shell (Ksh) $ a=5 ; print $(( a**2 )) $(( -a**2 )) $(( 0-a**2 )) 25 25 -25 and Algol 68 $ a68g -p 'INT a=5; (a^2, -a^2, 0-a^2)' +25 +25 -25 I don't want to value the different results (based on precedence), but I'm interested in your comments/thoughts about the differences. Janis