
22 July 2013 17:53 

njb Photographer Location United Kingdom Suffolk Halesworth  My calculator says "It's a boy...!!" 
22 July 2013 18:19 

pmeu Photographer  Quote from stolenfaces It's not mathematics  it's arithmetic Arithmetic is a branch of mathematics. So it is mathematics. 
28 July 2013 15:11 

EdT Photographer Location United Kingdom Cambridgeshire  Quote from StreetModel Now THAT one you'll have to explain because I bet very few people have HP calculators... It's not just interesting for 1970s HP calculators (or sinclair for that matter). If you've ever written a compiler for just about any modern computer language (or any just aboay any computer language) you would have a good grasp of Reverse Polish Notation. 
28 July 2013 15:25 

StreetModel Photographer Location United Kingdom Essex Upminster / All UK  I remember the days of Cobol with phrases such as 'Add A to B giving C' RPN calculators confuse the hell out of people that are not used to them, though... 'Hey  where is the equals button?' 

It could be Lupus.... It is NEVER Lupus!! 
29 July 2013 06:25 

mikethefoto Photographer This member has been suspended This member has been reset to pending Location United Kingdom Worcestershire  Depends on whether you are buying or selling? 
29 July 2013 08:28 

Ron_H Photographer  Depends where you put your brackets: (1 + 2) x 3 = 9 1 + (2 x 3) = 7 
29 July 2013 08:35 

StreetModel Photographer Location United Kingdom Essex Upminster / All UK  Quote from Ron_H Depends where you put your brackets: (1 + 2) x 3 = 9 1 + (2 x 3) = 7 I agree, but the question as asked has NO brackets  so what is the answer then? 

It could be Lupus.... It is NEVER Lupus!! 
29 July 2013 09:04 

Ron_H Photographer  Quote from StreetModel I agree, but the question as asked has NO brackets  so what is the answer then? If you do it in your head the answer is obviously 9, but you cant give a definitive answer using a calculator as different calculators work it out differently. But as a mathematical equation you WOULD have brackets in one place or the other (for that very reason). 
29 July 2013 09:10 

mantisphoto Photographer Location United Kingdom Birmingham  Quote from Ron_H If you do it in your head the answer is obviously 9, but you cant give a definitive answer using a calculator as different calculators work it out differently. But as a mathematical equation you WOULD have brackets in one place or the other (for that very reason). No....... if YOU do it in your head its 9... but for those who understand BIDMAS like myself, when we do it in our heads we get 7!! There is no need for brackets in this equation UNLESS you intend it to be (1+2) x 3 or 3(1+2) as it would be easier written. Mathematic equations are best in their simplest form, and 1 + 2 x 3 = 7 whether you write is like that or 1 + (2 x 3). 
29 July 2013 09:23 

stolenfaces Photographer Location United Kingdom London West London  Quote from mantisphoto No....... if YOU do it in your head its 9... but for those who understand BIDMAS like myself, when we do it in our heads we get 7!! There is no need for brackets in this equation UNLESS you intend it to be (1+2) x 3 or 3(1+2) as it would be easier written. Mathematic equations are best in their simplest form, and 1 + 2 x 3 = 7 whether you write is like that or 1 + (2 x 3). So if the person who wrote down the expression doesn't understand BIDMAS you will have the wrong answer to the actual realworld question. It takes two people to communicate  your attitude is rather similar to Britons abroad who just shout in the belief that people who don't understand English must surely be deaf. 

Like any dealer he was watching for the card that is so high and wild he'll never need to deal another... 
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