# Does +, -, *, / have more precedence over power?

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## Does +, -, *, / have more precedence over power?

 I understand in Smalltalk numerical calculation, if without round brackets, everything starts being calculated from left to right. Nothing follows the rule of multiplication and division having more precedence over addition and subtraction. Like the following codes 3 + 3 * 2 The print output is 12 while in mathematics we get 9 But when I started to try power calculation, like 91 raisedTo: 3 + 1. I thought the answer should be 753572 What I actual get is 68574964 Why's that? Is it because that +, -, *, / have more precedence over power ? ----- Dig, dig where you are, Down below's well. Let those that walk in darkness shout, Down below's hell. -- Sent from: http://forum.world.st/Squeak-Beginners-f107673.html_______________________________________________ Beginners mailing list [hidden email] http://lists.squeakfoundation.org/mailman/listinfo/beginners Dig, dig where you are, Down below's well. Let those that walk in darkness shout, Down below's hell.
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## Re: Does +, -, *, / have more precedence over power?

 Am 11.11.17 um 23:12 schrieb RedTigerFish: > I understand in Smalltalk numerical calculation, if without round brackets, > everything starts being calculated from left to right. Nothing follows the > rule of multiplication and division having more precedence over addition and > subtraction. > > Like the following codes > > 3 + 3 * 2 > The print output is 12 while in mathematics we get 9 > > But when I started to try power calculation, like > > 91 raisedTo: 3 + 1. > I thought the answer should be 753572 > > What I actual get is 68574964 > > Why's that? > > Is it because that +, -, *, / have more precedence over power ? No. Smalltalk has only message sends. And these message sends have a precedence (from higest to lowest):      Unary messages        (example: 100 factorial)      Binary messages        (example: 2*3)      Keyword messages    (91 raisedTo: 4) In  "91 raisedTo: 3+1" you have a keyword message (raisedTo:) and a binary message (+). The binary message will be evaluated first and then the keyword message. Regards Andreas > > > > ----- > Dig, dig where you are, > Down below's well. > Let those that walk in darkness shout, > Down below's hell. > -- > Sent from: http://forum.world.st/Squeak-Beginners-f107673.html> _______________________________________________ > Beginners mailing list > [hidden email] > http://lists.squeakfoundation.org/mailman/listinfo/beginners_______________________________________________ Beginners mailing list [hidden email] http://lists.squeakfoundation.org/mailman/listinfo/beginners