20190803, 21:33  #1 
"Kebbaj Reda"
May 2018
Casablanca, Morocco
5×11 Posts 
Relativity : the angle of vision by mathematics
if we read an equation from right to left or from left to right could change the result of the equation,
see this equation. 8/2 (2 + 2). If we read from right to left: (2 + 2) = 4 4 * 2 = 8 8/8 = 1 result = 1 If we read from left to right: 8/2 = 4 4 (2 + 2) = 16 Result = 16. Relativity : the angle of vision by mathematics. Last fiddled with by Kebbaj on 20190803 at 21:40 
20190803, 21:36  #2 
"Kebbaj Reda"
May 2018
Casablanca, Morocco
5·11 Posts 
Relativity : the angle of vision by mathematics
Relativity : the angle of vision by mathematics
My language is written from right to left. So for me the result of 8/2 (2 + 2). = 1 Last fiddled with by Kebbaj on 20190803 at 21:45 
20190803, 22:10  #3  
"Rashid Naimi"
Oct 2015
Out of my Body
2^{2}·11·41 Posts 
Quote:
Quote:


20190803, 22:42  #4  
"Kebbaj Reda"
May 2018
Casablanca, Morocco
67_{8} Posts 
Quote:
Last fiddled with by Kebbaj on 20190803 at 22:56 

20190803, 23:13  #5  
"Kebbaj Reda"
May 2018
Casablanca, Morocco
5·11 Posts 
Quote:
The sense of reading the equation is a convention and not a mathematical rule like function "multiplication ,addition..". Even Arabic numbers could have been written from right to left by convention. because we do not touch the laws of nature. 

20190803, 23:15  #6 
"Rashid Naimi"
Oct 2015
Out of my Body
11100001100_{2} Posts 
Well the beauty of xilman's wisdom is that it doesn't matter if you rule to evaluate from lefttoright or righttoleft (which I believe is not used in any language).
As long as you give precedence to division over multiplication you end up with the same value as giving precedence to the direction of the evaluation. Try it on 8/2*4 In any directional preference you wish. https://www.mersenneforum.org/showpo...92&postcount=3 Last fiddled with by a1call on 20190803 at 23:16 
20190803, 23:46  #7  
"Kebbaj Reda"
May 2018
Casablanca, Morocco
5·11 Posts 
Quote:
But the real beauty of the thing is "Being on the train or on the platform" seen otherwise. But you still need two good hours !! 

20190804, 03:00  #8 
"Curtis"
Feb 2005
Riverside, CA
3^{3}·5·31 Posts 
Use a real fraction bar instead of a / sign, and the ambiguity resolves itself. The flaw is in the method of communication, not the mathematics.

20190804, 03:31  #9  
"Kebbaj Reda"
May 2018
Casablanca, Morocco
55_{10} Posts 
Quote:
The problem is when you make code programming you could not put a fraction bar and you are forced to use the operator "/" Only a few specialized programs like mathematica can give you the possibility to program by changing the formatting of the code. 

20190804, 07:35  #10 
Dec 2012
The Netherlands
559_{16} Posts 
Polynomials from right to left
Let f,g and h be polynomials with nonzero constant term.
Write F, G and H for the polynomials you get by reversing the coefficients. For example, if f=2x³+5x²3x+4 then F=4x³3x²+5x+2 (obtained by reading f from right to left). Then fg=h if and only if FG=H. This is a useful little trick, for example, when you need to determine whether a polynomial is irreducible. 
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