I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
To be fair, he could be in grade 3 and learning rounding.Revnak said:0.9 infinitely repeating is "equal" to 1 in most forms of mathematics, which likely includes the one you are doing your homework in.
"(1/3) * 3 = 0.999999" is incorrect because it assumes that 1/3 = 0.33333, which is not true. At most, 0.33333 approximates 1/3.Pirate Of PC Master race said:Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
P.S:
1/3 = 0.33333.....
(1/3) * 3 = 0.999999... = 1
0.9999 does NOT equal to 1.
Which is why I out continuing dots(also known as Ellipsis), since I can't type in repeating decimals(https://en.wikipedia.org/wiki/Repeating_decimal).Fat_Hippo said:"(1/3) * 3 = 0.999999" is incorrect because it assumes that 1/3 = 0.33333, which is not true. At most, 0.33333 approximates 1/3.Pirate Of PC Master race said:Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
P.S:
1/3 = 0.33333.....
(1/3) * 3 = 0.999999... = 1
0.9999 does NOT equal to 1.
If you're multiplying fractions, don't turn them into decimals, because decimals will often be less precise than fractions. Another way of writing it would be 1/3 * 3 = 1/3 * 3/1 = 3/3 = 1, which is precise.
But really, we can't answer the OP's question without the context of what he's trying to solve.
Please do not quote things I said out of context(particularly by excluding ellipsis from my quotes). I can type "I am ass" from your previous quote by splicing your quote(and deleting large amount of unnecessary characters), but you can't see me doing that.An ellipsis is also often used in mathematics to mean "and so forth".
Then he would be under 12, and therefore ought to be banned.mduncan50 said:To be fair, he could be in grade 3 and learning rounding.Revnak said:0.9 infinitely repeating is "equal" to 1 in most forms of mathematics, which likely includes the one you are doing your homework in.
I was not intending to offend, but I did not quote you out of context either, as the entirety of your post was contained in my quote, and the OP's post was obviously taken into consideration.Pirate Of PC Master race said:Which is why I out continuing dots(also known as Ellipsis), since I can't type in repeating decimals(https://en.wikipedia.org/wiki/Repeating_decimal).Fat_Hippo said:"(1/3) * 3 = 0.999999" is incorrect because it assumes that 1/3 = 0.33333, which is not true. At most, 0.33333 approximates 1/3.Pirate Of PC Master race said:Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
P.S:
1/3 = 0.33333.....
(1/3) * 3 = 0.999999... = 1
0.9999 does NOT equal to 1.
If you're multiplying fractions, don't turn them into decimals, because decimals will often be less precise than fractions. Another way of writing it would be 1/3 * 3 = 1/3 * 3/1 = 3/3 = 1, which is precise.
But really, we can't answer the OP's question without the context of what he's trying to solve.
Please read this wikipedia article on Elipsis, under "In mathematical notation" before continuing any further. (https://en.wikipedia.org/wiki/Ellipsis)
Or to put it simply,
Please do not quote things I said out of context. I can type "I am ass" from your previous quote by splicing your quote(and deleting large amount of unnecessary characters), but you can't see me doing that.An ellipsis is also often used in mathematics to mean "and so forth".
That's only because derping was occuring and a decimal and fraction were being multiplied by one another, so you can choose to misinterpret.Fat_Hippo said:I was not intending to offend, but I did not quote you out of context either, as the entirety of your post was contained in my quote, and the OP's post was obviously taken into consideration.Pirate Of PC Master race said:Which is why I out continuing dots(also known as Ellipsis), since I can't type in repeating decimals(https://en.wikipedia.org/wiki/Repeating_decimal).Fat_Hippo said:"(1/3) * 3 = 0.999999" is incorrect because it assumes that 1/3 = 0.33333, which is not true. At most, 0.33333 approximates 1/3.Pirate Of PC Master race said:Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
P.S:
1/3 = 0.33333.....
(1/3) * 3 = 0.999999... = 1
0.9999 does NOT equal to 1.
If you're multiplying fractions, don't turn them into decimals, because decimals will often be less precise than fractions. Another way of writing it would be 1/3 * 3 = 1/3 * 3/1 = 3/3 = 1, which is precise.
But really, we can't answer the OP's question without the context of what he's trying to solve.
Please read this wikipedia article on Elipsis, under "In mathematical notation" before continuing any further. (https://en.wikipedia.org/wiki/Ellipsis)
Or to put it simply,
Please do not quote things I said out of context. I can type "I am ass" from your previous quote by splicing your quote(and deleting large amount of unnecessary characters), but you can't see me doing that.An ellipsis is also often used in mathematics to mean "and so forth".
From a mathematical perspective, the statement "(1/3) * 3 = 0.999999..." remains untrue, independent of the ellipses, as 0.999999... will never precisely be equal to 1, but "1/3 * 3" will.
Again, I wasn't trying to anger you, but merely correcting you in a manner which I found relevant to the mathematical problem being discussed. (Since "1/3 = 0.33333..." is very similar to "1 = 0.9999....")
Oh. That's your problem. Good thing I have answer for that as well.Fat_Hippo said:I was not intending to offend, but I did not quote you out of context either, as the entirety of your post was contained in my quote, and the OP's post was obviously taken into consideration.Pirate Of PC Master race said:Which is why I out continuing dots(also known as Ellipsis), since I can't type in repeating decimals(https://en.wikipedia.org/wiki/Repeating_decimal).Fat_Hippo said:"(1/3) * 3 = 0.999999" is incorrect because it assumes that 1/3 = 0.33333, which is not true. At most, 0.33333 approximates 1/3.Pirate Of PC Master race said:Yeah, what he said. Don't get help from here.Baron Cimetiere said:Call me a lunatic, but I think you shouldn't ask for homework help on this site, but pick one that's more suited. The answer to your question in any case is that .99999 APPROXIMATES 1 through rounding, but cannot equal 1.Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.
.999999... ~ 1
P.S:
1/3 = 0.33333.....
(1/3) * 3 = 0.999999... = 1
0.9999 does NOT equal to 1.
If you're multiplying fractions, don't turn them into decimals, because decimals will often be less precise than fractions. Another way of writing it would be 1/3 * 3 = 1/3 * 3/1 = 3/3 = 1, which is precise.
But really, we can't answer the OP's question without the context of what he's trying to solve.
Please read this wikipedia article on Elipsis, under "In mathematical notation" before continuing any further. (https://en.wikipedia.org/wiki/Ellipsis)
Or to put it simply,
Please do not quote things I said out of context. I can type "I am ass" from your previous quote by splicing your quote(and deleting large amount of unnecessary characters), but you can't see me doing that.An ellipsis is also often used in mathematics to mean "and so forth".
From a mathematical perspective, the statement "(1/3) * 3 = 0.999999..." remains untrue, independent of the ellipses, as 0.999999... will never precisely be equal to 1, but "1/3 * 3" will.
Again, I wasn't trying to anger you, but merely correcting you in a manner which I found relevant to the mathematical problem being discussed. (Since "1/3 = 0.33333..." is very similar to "1 = 0.9999....")
I wont tell on the kid if you don't.Revnak said:Then he would be under 12, and therefore ought to be banned.mduncan50 said:To be fair, he could be in grade 3 and learning rounding.Revnak said:0.9 infinitely repeating is "equal" to 1 in most forms of mathematics, which likely includes the one you are doing your homework in.
Yes, they are exactly equal. It's not even disputed by people who really know math. It's conclusive and just calling things 'tricks' doesn't actually show any error.Toast B.C. said:The answer is simple even if people get too far up their own butts to admit it. (I have 3 friends exactly like this.)
No, 0.999999999 repeating does not equal 1. No tricks for multiplication of fractions and decimals will ever make them equal. Doing that 1/3= 0.333333333 line is about the same thing as running translations through google translate 8 times. It's fun, but the results aren't correct.
But it is damn near impossible to show the difference. Much like with 0, you can't show it, but treating them as something hey are not, creates false results.
They simply aren't, and it's something at just has to be accepted since people far smarter than all of us, who are paid to be as smart as they are, have to do calculations based on the difference. Saying, "close enough as makes no difference", will cause spaceships to explode. And if you have to make exceptions for differing levels of math, then you shouldn't be asking the question in the first place.
Again, these are just the arguments I have have seen in the past.
The most accepted 'proof' is:Goatworlds said:I'm trying to do my math homework today, and I need your help. Does 0.9999 equal 1? My friends say no, But i'm not exactly sure.