"Ophelia" > wrote in message
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> "Julie Bove" > wrote in message
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>> "Ophelia" > wrote in message
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>>> "Julie Bove" > wrote in message
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>>>>
>>>> "NOYDB" <ljlameres at acd.net> wrote in message
>>>> ...
>>>>>I find that I frequently want to adjust a recipe up or down in
>>>>> quantity. I use an old slide rule to set up the original proportion (
>>>>> set the 1 over the adjusted quantity; 2, 3, .5, whatever ) then read
>>>>> the new quantity directly under the original quantity. Sometimes
>>>>> there's a problem in measuring the new quantity exactly though.
>>>>>
>>>>> Anyway I was wondering if anybody else does this or if I'm just an old
>>>>> geek. I started using a sliderule studying electronics in the '70's.
>>>>
>>>> I've never even used a slide rule! I don't even know what they are
>>>> really. I think my dad had one though.
>>>
>>> I think it is the foreunner of a calculator but I might be wrong
>>
>> Could be. I am old enough that I remember when calculators came out.
>> They were very expensive. We were never allowed to have them in school.
>> These days they are a requirement.
>>
>> My first calculator was a solar one. It required very strong light to
>> use it. Bought another one a couple of years later that works even in
>> dim light. I still have it but it's starting to look decrepit. Still
>> works though.
>
> I just use the one on my computer

I use mine sometimes but it doesn't divide.