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The ^ is only to write easily on this forum which doesn't have a 2 button. Of course it's not the actual symbol anybody writes math with on paper or in books!
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Come on, can you at least try?
4^2 = 16 4^2 ft = 16ft 4 ft^2 = ? 4^2 ft^2 = ? (4ft)^2 = ?
What do you expect I'd put for the others?
4 ft^2 = 2 ft * 2 ft = 4 ft^2 4^2 ft^2 = ? (4ft)^2 = ?
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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which doesn't have a 2 button then what is the square button? what should we use for a square? 4 square is not equal to 4 squared 2 ft * 2 ft = 4 ft^2 in the above if you would have had a symbol to use that describes a square would you have used it instead of using the symbol that describes a number that is to be multiplied by itself? ie... 4 ( the symbol for square ) ft or 4 ft( the symbol for square )
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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4^2 = ? = four square 4^2 ft = ? = four square feet 4 ft^2 = ? = four foot squared 4^2 ft^2 = four square foot squared (4ft)^2 = ? = four foot squared
Actually that's not far off. Except you randomly mixed up "square" and "squared" making it undecipherable. 4^2 = four squared 4^2 ft = four squared feet [not four square feet] 4 ft^2 = four foot squared [OK] 4^2 ft^2 = four squared foot squared (4ft)^2 = four squared foot squared
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what should we use for a square? 4 square is not equal to 4 squared
Or we could stop using words like "foot" and "squared". They're always vulnerable to impreciseness or misunderstanding.
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in the above if you would have had a symbol to use that describes a square would you have used it instead of using the symbol that describes a number that is to be multiplied by itself?
What on earth is a "square" if it's not the multiplication of a number by itself???? OK it can also be the multiplication of any other expression by itself. Such as x^2 or ft^2 But it's the same meaning! ft^2 is the same as square foot or foot squared. It's what you get when you multiply ft by ft, such as: 3ft*4ft = 3*4*ft*ft = 12ft^2
Last edited by kallog; 10/03/11 06:05 PM.
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Or we could stop using words like "foot" and "squared". They're always vulnerable to impreciseness or misunderstanding. I think It would be better to have a symbol to use , look at all the confussion it causes. ie... how would you write 4 square meters? and how would you write 4 meters squared? using only numbers and symbols and units no words allowed !!! previously you used 4ft^2 for (four foot squared) so what would you do differently for four square foot?
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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I think It would be better to have a symbol to use , look at all the confussion it causes.
I agree. ie... how would you write 4 sq meters? [4m2] how would you write 4 meters squared? [Not sure what you mean by this (words!), could be 4m2 or 16m2 ]
previously you used 4ft^2 for (four foot squared) so what would you do differently for four square foot? [again unclear, either 42ft or 4ft2 ]
Last edited by kallog; 10/03/11 06:09 PM.
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how would you write 4 meters squared? [Not sure what you mean by this (words!), could be 4m2 or 16m2 ] exactly my point... 4m^2 = 4m * 4m = 16m but 4 square meters is only 4 sq meters a single square meter is 1 meter square 1m * 1m = 1m^2 so 4 of the 1m^2 = 4 sq meters and if you write 4m^2 for 16 meters and 4m^2 for 4 meters you have 2 different meanings.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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There's no confusion if you do it the correct way. I've told you countless times. Do you not know what I'm saying or do you not want to look it up? The whole complicated system for all units of any quantities is just one simple rule: Treat units like variablesThat's all it is. That allows you to work with any units without getting confused. You don't need to try and decide if seconds are already included in m/s/s or whatever.
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3ft*4ft = 3*4*ft*ft = 12ft^2 above you see the problem in communication I know that 12ft^2 = 12 ft * 12 ft = 144 ft so all of a sudden 3 ft * 4 ft = 144 ft
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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I know that 12ft^2 = 12 ft * 12 ft = 144 ft
Why are you multiplying 12 by itself? There's no squared symbol on the 12, it doesn't get squared. Also, why are you ignoring one of the ft? There are two, but you dropped one arbitrarily. It's not 12^2 ft. That would be 144 ft It's 12ft^2. It's a different quantity. Treat units like variablesAlso you need to use PEMDAS whenever you're doing math. You didn't use it correctly above.
Last edited by kallog; 10/03/11 06:33 PM.
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It's not 12^2 ft. That would be 144 ft It's 12ft^2. It's a different quantity.
just for clarity could you put the two in words so that I can better understand how they are pronounced. yet you say they have different quantities. 12^2 ft = ? 12ft^2 = ? the ^2 must have different meanings because the two above have the same symbol in them. and using the symbol as it is commonly used the following is true. 12 squared ft is exactly the same as 12 feet squared ie... the only thing above that can be multiplied by itself is the number 12 try to multiply ft*ft what you always get is ft !! now try (ft*ft*ft*ft) / ft^2 * (ft-ft-ft) = ft try any combination you always get ft guess what ft hasnt got a numeric value !!! so remove ft and you have 12 squared and 12 squared each of the above = 144
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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I know that 12ft^2 = 12 ft * 12 ft = 144 ft
... PEMDAS ... PEMDAS is part of the obvious conspiracy among all the world's existing engineers, scientists, teachers, and mathematicians. Some people think "logic" is any idea that happens to come into their heads. Anyway, I'm off to tutor a couple kids in pre-calc.
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3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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Treat units like variables units do not change so they cannot vary thus they cannot be variables. meters does not morph into something other than meters. therefore you can multiply , add , subtract or whatever you want to a unit and it never changes. meters will always be meters , to sudggest something different is ignorant.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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Treat units like variables units do not change so they cannot vary thus they cannot be variables. You already treat numbers like variables, 3 doesn't change but you still square it the same as you'd square x. Come on Paul, why don't you focus on the issue instead of looking for word tricks? meters does not morph into something other than meters.
1m = 100cm If you deny that then end of thread. See how 1 is not the same as 100, but with the units included, the two sides of the equation are (undeniably) equal? therefore you can multiply , add , subtract or whatever you want to a unit and it never changes.
That's the basic mistake you can't seem to let go of. If units can't be operated on, why on earth do you think we have things like: 12 ft^2 15 psi (pounds / in^2) 20 ft-lb (20 ft-lb is not the same as 20lb, ask any mechanic) 20 Nm 40 m/s (surely the same as 40m.s or 40m) etc.. Don't you see that these units aren't just made up because they sound like words, they have a reason.
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the only thing above that can be multiplied by itself is the number 12
try to multiply ft*ft what you always get is ft !!
Finally you acknowledge that ft^2 means ft*ft!! Right? 12 ft^2 Clearly the 12 is not being squared (PEMDAS, look it up). You say ft^2 = ft, so your answer is really 12 ft not 144 ft To check you know PEMDAS, make sure you agree to these: 2 * 4^2 = 32 (2*4)^2 = 64
Last edited by kallog; 10/04/11 04:17 AM.
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Finally you acknowledge that ft^2 means ft*ft!! Right? wrong ft^2 must have a number in front of it to be something. ft^2 is nothing but units and symbols that have no value. its exactly like saying nothing^2 = nothing and being correct. I write correct equations. you and TFF dont. 12 ft^2 Clearly the 12 is not being squared its clear to me because of the ^2 , because I know what 12 ft^2 (twelve foot squared ) means. plus if the 12 wasnt to be squared then why was it included into the 12 ft^2 why not just put 12 ft? when TFF wrote 2bananas * 2 bananas = 4bananas^2 ( FOUR BANANAS SQUARED)what do you think he really meant? after all he did clearly WRITE IT OUT when he wrote ( FOUR BANANAS SQUARED ) to describe what his answer meant. what do the words ( FOUR BANANAS SQUARED) mean to you?
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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ft^2 is nothing but units and symbols that have no value.
People use ft^2 all the time. They also use s^2, and you use it too to describe acceleration. It's not meaningless. a ft^2 is the area of a square with 1ft side lengths. ft is not a unit of area. If you have a 1000ft apartment, you have to decide which distance is 1000ft. Maybe it's the length, or the perimeter, or something else. But it's not the area. its clear to me because of the ^2 , because I know what 12 ft^2 (twelve foot squared ) means.
You actually will get ripped off if you try to by some carpet or an apartment or whatever. Every other person thinks 12ft^2 means something different to what you think it means. The confusion you talked about in the timber shop won't occur in the real world because nobody else thinks 12ft^2 is 144ft. 2bananas * 2 bananas = 4bananas^2 ( FOUR BANANAS SQUARED)
what do you think he really meant?
Apply PEMDAS and you will know what it means to me. Do you agree to these: 2 * 4^2 = 32 (2*4)^2 = 64
Last edited by kallog; 10/04/11 08:32 AM.
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