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Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Mr2kul(m): 11:13pm On Sep 07, 2020 |
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Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Martinez39s(m): 11:34pm On Sep 07, 2020 |
The android calculator is correct. You probably need to change the battery of your calcio calculator. 1 Like 1 Share |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Nobody: 11:47pm On Sep 07, 2020 |
sinkhole:Programming languages use PEMDAS strictly which means there's no Of. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Nobody: 11:49pm On Sep 07, 2020 |
Spy360:Nope the Casio and the phone are both correct, since there is no standard. Where is ANSI and ISO when you need em. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by RubiesBanking: 11:59pm On Sep 07, 2020 |
vincentont: Your wrong, the second bracket can also represent multiplication since it's a single value inside. The first order of bodmas the bracket implies you solve whatever that's inside the parentheses first. Use any calculator you will also know that the answer is 9, even with your mechanical calc |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Simpubozz(m): 12:03am On Sep 08, 2020 |
All I'm seeing is Android!!! Someone should try it on iOS I want to check something |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by ObinnaObinna(m): 12:14am On Sep 08, 2020 |
Chevrolet076: Your mother sucked my díck with greater pride. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Martinez39s(m): 12:48am On Sep 08, 2020 |
Goldeno: Seikiri1:❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌ The correct answer is 9. 1 is wrong. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by webm: 1:48am On Sep 08, 2020 |
That method used by the calculator is wrong. It's a method used more than 200 years ago. If you have 6÷2(2+1). The only thing inside the bracket that should be evaluated first is 2+1. Nothing else is inside bracket. In that case you have : 6÷2(3) Now. Only 3 is inside bracket, you can open it and get 6÷2*3 According to BODMAS, Division before multiplication, so you have : 3*3 which is 9. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by WoundedLamb: 2:54am On Sep 08, 2020 |
A Computer Scientist's Explanation To understand this, let's forget about the rather "complex" expression and work with a simplified version. The two actual equations to consider here are: 6÷2×3 = 3×3 = 9 AND 6÷2×3 = 6÷6 = 1 The basic issue here is, multiplication and division, which should come first when a change in priority leads to a change in output? In mathematics, multiplication and division are on the same level and that is why their positions are interchangeable (BODMAS vs PEMDAS). This is also the case in programming (this is actually the case with any two operators that reverse each other). So it is safe to say the above equations are both correct. Casio is a bit more strict so it constantly put multiplication ahead for ease of computing while the Android calculator software simply goes with whichever one that comes first out of the two. Let's read a bit further to know which one is ACTUALLY correct. Someone might ask, how can the same equation give the two different answers and both will be correct? Well, welcome to the programmer's world. You see, the correctness of an output isn't just a function of having a final figure but also a function of how closely the variables interpret the actual real life problems being solved. In the case above, if the two equation are meant to solve the same word problem, then one definitely has a logical error and one must know the word problem before one can tell which one is wrong. This is because when two operators are on the same level (which is always the case with any two operators that reverse each other), the acceptable grouping/order strictly depends on the items represented by individual variables. Since computers only work with variables, there's no way they would know this so they simply go with the one that comes first (or, as Casio did, strictly pick one ahead of the other). It is now left to the human users or programmers (who know the real life items these variables represent) to enforce the wanted grouping using brackets. These grouping could be based on the fact that a part of the expression is coming from another problem that must fully be solved before joining the remaining part or anything of as such actually. So while the the two answers are correct in terms of hard figures, only one actually solves the problem and until we know the problem that led to the punching of calculators, we'd never really know which one. NB: In an academic setting (secondary and primary schools) where the figures are just there for simulations and learning purposes only, please, go with Casio's result cause strictly putting multiplication ahead is a convention generally adopted for uniformity and outcome predictability provided the figures don't really represent anything. Thanks 7 Likes 2 Shares |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by aysnoopy(m): 4:58am On Sep 08, 2020 |
WoundedLamb: This is d best answer. In some cases, 9 is correct and in another case, 1 is correct. I'm an engr and also once a physics teacher. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by femi4: 6:04am On Sep 08, 2020 |
BluntNigerian:Casio is wrong |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by timmykaydude: 6:22am On Sep 08, 2020 |
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Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Linus199(m): 6:45am On Sep 08, 2020 |
Emescot:6/2(2+1)=6/2(3) =6/6= 1 |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by sinkhole: 6:52am On Sep 08, 2020 |
Mr2kul:you need to have account with them. The registration with them is free and it does not depend on whether you have MATLAB installed or not. The password and ID from the registered account will be used to setup the android APP. Hope this helps? |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by taiwiki(m): 7:03am On Sep 08, 2020 |
The reason why both gave different answers is because the Casio calculator would not calculate until you press the equal to key, thereby following the BODMAS rule. While the phone calculator calculates as you enter each figure without needing to click the equal to key. But still both answers are right depending on how you see it. 2 Likes |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by DipoToyo(m): 7:26am On Sep 08, 2020 |
RubiesBanking:However, it's gonna wrk. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by LadySarah: 7:46am On Sep 08, 2020 |
The answer is 1. Take care of bracket. 2plus 1 equals 3.nect multiplication 3times 2 equals 6 then divide by 6 equals 1. 2+1*2 /6 MrShape,come and pay me for this answer |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Nopanties: 7:48am On Sep 08, 2020 |
taiwiki:You had made sense but then you ruined the conclusion by saying both are correct. The correct answer is 1. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Nopanties: 7:51am On Sep 08, 2020 |
LadySarah:You're also correct but why did you conclude by interchanging the numerator for the denominator |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by LadySarah: 7:57am On Sep 08, 2020 |
Nopanties:I didn't 2+1*3=6 6/6=1 |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by DAramis: 8:16am On Sep 08, 2020 |
BluntNigerian: The calculator supposed to be in deg mode not the HI mode it is in. To correct the anomaly, Click shift button and click the Ans button later to change the calculator's mode to the right one |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by AyarmBoye(m): 8:21am On Sep 08, 2020 |
Fiduciary:nah nah if you calculate without calculator following bodmas...you will get 1...the android calculator is wrong |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by emmy512: 8:26am On Sep 08, 2020 |
Before you solve maths you should be able to arrange an equation properly, if it's not arranged properly, you will have issues. 6÷2 is a fraction, not a whole number, if it were a whole number the bodmas would have come into play. So we solve it first as a separate entity. Then move to (2+1) Then we have 3(3)=9 The answer can't be 1 except your calculator is not in degree mode. I remember during my waec i had calculator set to radian answers were totally different from other people. The same calculator won't give you same answer when set to different mode, if you have it set to hex or any other number system but decimal it'll also affect the answer. As far as decimal system is concerned answer is 9 1 Like |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Mr2kul(m): 8:30am On Sep 08, 2020 |
sinkhole:Thanks... I got it |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Ivix(m): 8:36am On Sep 08, 2020 |
SegFault:Oga PEMDAS and BODMAS are the same thing. Either Multiplication or Division can be done first. Same as Addition and Subtraction, either can be done first. The correct answer to this question is 1. The reason the phone's calculator gives 9 is because it operates your question as it's arranged. That means as one puts in a question, it begins to calculate even before you finish typing in the whole question. A scientific calculator like Casio on the other hand uses mathematical laws like PEMDAS/BODMAS. So it gets the whole question and processes it before it gives an answer. 1 Like |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by HopeAtHand: 8:59am On Sep 08, 2020 |
Seikiri1: I wish I could buy u beer. |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by sureteeboy(m): 9:22am On Sep 08, 2020 |
WoundedLamb:This is the most meaningful explanation most people failed to realise |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by taiwiki(m): 9:24am On Sep 08, 2020 |
Nopanties:lols...that's why I said depending on how you look at it. For me I'd go with 1 too |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Nobody: 10:33am On Sep 08, 2020 |
Ivix:PEMDAS Parenthesis first: 6/2(2+1); 2+1=3; Exponent next: No exponent Multiplication: Multiplication and division have the same precedence therefore division has to be done first. 6/2(3); 6/2=3 Then Multiply lastly. 3*3=9; |
Re: Can Someone Explain Why These Two Calculators Got Different Answers.. by Martinez39s(m): 10:37am On Sep 08, 2020 |
aysnoopy:JESUS! How can an engineer and Physics teacher say this nonsense. According to principles of basic arithmetic, that question has one and only one answer which is 9. Getting 1 is due to ignorance and a wrong application of arithmetic. 1 Like |
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