Now I need the English word for "huvudräkning" to continue... Huvudräkning = when you calulate stuff by only using your brain, no paper, no pen, no calculator, no computer etc... direct translation would be "head calculating", "calculating by head" or something like that... Anybody know what word I am looking for...?
So...
Maybe people who are not used to "huvudräkning" find "your way" to be somewhat easier but if you are used to one way of calculating, I guess you will continue that way as long as you find it easy enough...
I just THINK that in your case, it could be hard to remember when you should multiply with 5/9 and when to multiply with 9/5.
I guess this could be a compromise that makes a bit sense:
°F = °C×9/5 + 32 °C = (°F - 32)×5/9
Johnny
John W. Kennedy <[EMAIL PROTECTED]> skrev den Sun, 08 May 2005 08:49:10 -0400:
Johnny Andersson wrote:Why is 9/5 easier than 1.8? I thought it was the same thing... ;D However 5/9 might be easier than 1/1.8 or 0.55555555...
Most people find it easier to do in their heads.
Why is it easier to add 40 and then subtract 40 than it is to just add or subtract 32 once only?
Easier to memorize. Consider. The one way is:
F = 1.8 C + 32 C = (F - 32) / .555555
I guess you mean C = (F - 32) × .555555 or C = (F - 32) / 1.8. Was that a try to prove to me that "my" method is harder to get right...? ;D
The other way is:
F = (C + 40) * 9 / 5 - 40 C = (F + 40) * 5 / 9 - 40
The addition or subtraction of 40 is also a little easier to do in your head than 32.
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