In Germany, division is written as
22 : 7 = 3,1428...
Of course, when not restricted to a single line, the fractional notation is more useful:
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In Germany, division is written as 22 : 7
Are you sure?
In England, ratios are often also denoted using ':'. Eg. 4:3, 16:9 (screen ratios); 3:1, 2:1 on (betting odds etc.) But these are all whole number ratios. You would never see 1 : 3.141592653. That would always be 1/3.141592653.
I don't know much about German mathematics (apart from they've historically led the world at it), but in the few months I worked there, I never saw division written or typed as x:y, always x/y, unless it was a whole number ratio. Is my memory flawed? Or were my co-workers and correspondence simply accommodating the quaint Englishman?
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In my German school education, I was taught : as the division operator. It's also used to indicate ratios (unsurprisingly).
I mostly use the form of fractions, as it's far more convenient to me and in most cases I have a two-dimensional display+input area ("paper") to write on.
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In England, ratios are often also denoted using ':' ... But these are all whole number ratios. You would never see 1 : 3.141592653.
A bit OT, but further to the point, implicit to most of these discussions, that if it can be done some way, someone does it that way...
At least in the States, film review magazines commonly refer to screen ratios as '1.33:1' (i.e., 4:3 television or pre-Academy-standard film), '1.37:1' (standard 'Academy' ratio), '1.85:1' (standard (?) theatrical ratio), '2.35:1' (theatrical wide-screen), '1.66:1', '1.78:1', etc., etc.
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