If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Rate Thread | Display Modes |
|
#1
|
|||
|
|||
Calculating the aspect ratio
Does anyone know the underlying mathematical formula used in this webpage?
https://andrew.hedges.name/experiments/aspect_ratio/ I'm afraid my algebraic skills have dwindled to almost nil in the 65 years since high school algebra! LOL -- Ken MacOS 10.14.5 Firefox 67.0 Thunderbird 60.7 "My brain is like lightning, a quick flash and it's gone!" |
#2
|
|||
|
|||
Calculating the aspect ratio
"Ken Springer" wrote | Does anyone know the underlying mathematical formula used in this webpage? | | https://andrew.hedges.name/experiments/aspect_ratio/ | He gives it right below the text inputs. x / y * y2 = x2 1080 / 1920 = .5625 ..5625 * 800 = 450 His sample is for a 16/9 monitor, so you can also do it that way: 800 / 16 = 50 50 * 9 = 450 |
#3
|
|||
|
|||
Calculating the aspect ratio
On 6/6/2019 7:44 PM, Mayayana wrote:
50 * 9 = 450 The basic formula is a simple direct proportions calculation X1 X2 ------ = ------ Y1 Y2 Which is calculated as X1 * Y2 = Y2 * X3 and finally X1 * Y2 ------- = Y2 X3 -- 2018: The year we learn to play the great game of Euchre |
#4
|
|||
|
|||
Calculating the aspect ratio
On 07/06/2019 01:26, Keith Nuttle wrote:
On 6/6/2019 7:44 PM, Mayayana wrote: 50 * 9 = 450 The basic formula is a simple direct proportions calculation X1 X2 ------ = ------ Y1 Y2 Which is calculated as X1 * Y2 = Y2 * X3 With due respect, this is completely wrong. How did you get X3 into the equation. It wasn't in there in the first place. the correct transformation should be: X1 * Y2 = Y1 * X2 // this simple cross multiplying. and finally X1 * Y2 ------- = Y2 X3 WRONG again!!!!!!!! If you want to make Y2 as the subject of the formula then it should be: Y2 = ( Y1 * X2) / X1 You really need to get the variables correct when doing simple calculations. How many people did you kill when getting mixed up with calculations in preparing drugs for patients? You were a chemists is this correct? You must have killed many people with silly mistakes like the one you made here. -- With over 950 million devices now running Windows 10, customer satisfaction is higher than any previous version of windows. |
#5
|
|||
|
|||
Calculating the aspect ratio
"Keith Nuttle" wrote
| | The basic formula is a simple direct proportions calculation | | X1 X2 | ------ = ------ | Y1 Y2 | | | Which is calculated as | X1 * Y2 = Y2 * X3 | X3? |
#6
|
|||
|
|||
Calculating the aspect ratio
On 6/6/2019 10:51 PM, Mayayana wrote:
"Keith Nuttle" wrote | | The basic formula is a simple direct proportions calculation | | X1 X2 | ------ = ------ | Y1 Y2 | | | Which is calculated as | X1 * Y2 = Y2 * X3 | X3? Would you believe X2 Fingers on the key board sometimes write what they think I want not what I intend. -- 2018: The year we learn to play the great game of Euchre |
#7
|
|||
|
|||
Calculating the aspect ratio
"Keith Nuttle" wrote
| | The basic formula is a simple direct proportions calculation | | | | X1 X2 | | ------ = ------ | | Y1 Y2 | | | | | | Which is calculated as | | X1 * Y2 = Y2 * X2 | | | | X3? | | | Would you believe X2 | | Ah. I still don't see the answer here, though. You have: X1 * Y2 ------- = Y2 X2 But Y2 is on both sides. So I tried putting Y1 on the left, thinking maybe you intended that. But that doesn't work either. I thought maybe there's an easier method than mine. I'm not a math whiz. But so far we don't seem to have a 1-step solution. |
#8
|
|||
|
|||
Calculating the aspect ratio
On 6/6/19 3:25 PM, Ken Springer wrote:
Does anyone know the underlying mathematical formula used in this webpage? https://andrew.hedges.name/experiments/aspect_ratio/ I'm afraid my algebraic skills have dwindled to almost nil in the 65 years since high school algebra! LOL OK, I screwed up. What I wrote isn't in any way clear for what I'm looking for. Not the first time I've done that! LOL W1... Enter 1280 H1... Enter 600 How does he calculate the aspect ratio, just above the Example rectangle, to be 32:15? This is the math I don't remember. LOL -- Ken MacOS 10.14.5 Firefox 67.0 Thunderbird 60.7 "My brain is like lightning, a quick flash and it's gone!" |
#9
|
|||
|
|||
Calculating the aspect ratio
On 07/06/2019 01:41, Ken Springer wrote:
On 6/6/19 3:25 PM, Ken Springer wrote: Does anyone know the underlying mathematical formula used in this webpage? https://andrew.hedges.name/experiments/aspect_ratio/ I'm afraid my algebraic skills have dwindled to almost nil in the 65 years since high school algebra! LOL OK, I screwed up. What I wrote isn't in any way clear for what I'm looking for. Not the first time I've done that! LOL W1... Enter 1280 H1... Enter 600 How does he calculate the aspect ratio, just above the Example rectangle, to be 32:15? This is the math I don't remember. LOL do you know what common factors are? In your example, 10 is a common factor of 1280 and 600. therefore divide them by 10 to give: 128 and 60 Now the common factor is 4 in both numbers so divide them by 4 to give: 32 and 15 In 32 and 15 there aren't any more common factors to give exact whole numbers when divided by a number so the final result is: 32:15 At your age, you should really not be concerned by primary school mathematics because children are better at that and they enjoy doing them. I did these things when I was only 8. You can learn these things from Indian teachers because Mathematics is their forte. they are driving the IT industry these days because of their good education system. -- With over 950 million devices now running Windows 10, customer satisfaction is higher than any previous version of windows. |
#10
|
|||
|
|||
Calculating the aspect ratio
On 6/6/19 7:23 PM, 😉 Good Guy 😉 wrote:
On 07/06/2019 01:41, Ken Springer wrote: On 6/6/19 3:25 PM, Ken Springer wrote: Does anyone know the underlying mathematical formula used in this webpage? https://andrew.hedges.name/experiments/aspect_ratio/ I'm afraid my algebraic skills have dwindled to almost nil in the 65 years since high school algebra!Â* LOL OK, I screwed up.Â* What I wrote isn't in any way clear for what I'm looking for.Â* Not the first time I've done that!Â* LOL W1...Â* Enter 1280 H1...Â*Â* Enter 600 How does he calculate the aspect ratio, just above the Example rectangle, to be 32:15?Â* This is the math I don't remember.Â* LOL do you know what common factors are?Â* In your example, 10 is a common factor of 1280 and 600.Â* therefore divide them by 10 to give: 128 and 60 Now the common factor is 4 in both numbers so divide them by 4 to give: 32 and 15 In 32 and 15 there aren't any more common factors to give exact whole numbers when divided by a number so the final result is: 32:15 Now, write the math formula to do that, and remember you can only input the 1280 and 600, or any other pair of numbers. You do not get to choose a common factor for input. At your age, you should really not be concerned by primary school mathematics because children are better at that and they enjoy doing them.Â*Â* I did these things when I was only 8. The senility of that statement sill proves I'm many years younger than you. -- Ken MacOS 10.14.5 Firefox 67.0 Thunderbird 60.7 "My brain is like lightning, a quick flash and it's gone!" |
#11
|
|||
|
|||
Calculating the aspect ratio
Ken Springer posted this via
: On 6/6/19 7:23 PM, 😉 Good Guy 😉 wrote: On 07/06/2019 01:41, Ken Springer wrote: On 6/6/19 3:25 PM, Ken Springer wrote: Does anyone know the underlying mathematical formula used in this webpage? https://andrew.hedges.name/experiments/aspect_ratio/ I'm afraid my algebraic skills have dwindled to almost nil in the 65 years since high school algebra!Â* LOL OK, I screwed up.Â* What I wrote isn't in any way clear for what I'm looking for.Â* Not the first time I've done that!Â* LOL W1...Â* Enter 1280 H1...Â*Â* Enter 600 How does he calculate the aspect ratio, just above the Example rectangle, to be 32:15?Â* This is the math I don't remember.Â* LOL do you know what common factors are?Â* In your example, 10 is a common factor of 1280 and 600.Â* therefore divide them by 10 to give: 128 and 60 Now the common factor is 4 in both numbers so divide them by 4 to give: 32 and 15 In 32 and 15 there aren't any more common factors to give exact whole numbers when divided by a number so the final result is: 32:15 Now, write the math formula to do that, and remember you can only input the 1280 and 600, or any other pair of numbers. You do not get to choose a common factor for input. At your age, you should really not be concerned by primary school mathematics because children are better at that and they enjoy doing them.Â*Â* I did these things when I was only 8. The senility of that statement sill proves I'm many years younger than you. The nice thing about the age of Google is we don't need no steenkeen math! Hope this helps. -- I AM Bucky Breeder, (*(^; Resolve conflicts the American way : Rock - Paper - Scissors - Blame It All On The Russians .... and I approve this message! |
#12
|
|||
|
|||
Calculating the aspect ratio
On 6/7/19 7:45 AM, Bucky Breeder wrote:
The nice thing about the age of Google is we don't need no steenkeen math! Once in a while, having something on paper is quicker and more efficient than looking it up on the web. There's no perfect answer to everything. -- Ken MacOS 10.14.5 Firefox 67.0 Thunderbird 60.7 "My brain is like lightning, a quick flash and it's gone!" |
#13
|
|||
|
|||
Calculating the aspect ratio
"Ken Springer" wrote
| At your age, you should really not be concerned by primary school | mathematics because children are better at that and they enjoy doing | them. I did these things when I was only 8. | | The senility of that statement sill proves I'm many years younger than you. | Eat your melba toast and behave yourself. The last person who tried to break out of this place lost his TV privileges and had to go 2 weeks without The Peoples' Court. Good Guy only has your best interests in mind. |
#14
|
|||
|
|||
Calculating the aspect ratio
On 6/7/19 8:21 AM, Mayayana wrote:
"Ken Springer" wrote | At your age, you should really not be concerned by primary school | mathematics because children are better at that and they enjoy doing | them. I did these things when I was only 8. | | The senility of that statement sill proves I'm many years younger than you. | Eat your melba toast and behave yourself. The last person who tried to break out of this place lost his TV privileges and had to go 2 weeks without The Peoples' Court. Good Guy only has your best interests in mind. LOL If he wants to dish it out, he'd better be willing to be on the receiving end also. I tried Melba toast one time, didn't think much of it. -- Ken MacOS 10.14.5 Firefox 67.0 Thunderbird 60.7 "My brain is like lightning, a quick flash and it's gone!" |
#15
|
|||
|
|||
Calculating the aspect ratio
In article , Ken Springer
wrote: Now, write the math formula to do that, and remember you can only input the 1280 and 600, or any other pair of numbers. You do not get to choose a common factor for input. are you actually asking how to calculate aspect ratio given width and height?? At your age, you should really not be concerned by primary school mathematics because children are better at that and they enjoy doing them.** I did these things when I was only 8. The senility of that statement sill proves I'm many years younger than you. rude as his comment may be, he's correct. it's grade school math. |
Thread Tools | |
Display Modes | Rate This Thread |
|
|