Re: Can a TI-86 do this?


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Re: Can a TI-86 do this?



How the solver works is this:  You type in the equation with all the
variables.  So you would type in "f=1.44/(Ra+Rb)C".  Then you go and
fill in all but one of the variables with your known values.  Then you
have the calculator solve for the unknown variable.  Very Easy.

>----------
>From:  Dean[SMTP:removethisfirst-dino@TEXAS.NET]
>Reply To:      Dean
>Sent:  Sunday, March 15, 1998 3:26 PM
>To:    CALC-TI@LISTS.PPP.TI.COM
>Subject:       Re: Can a TI-86 do this?
>
>On Sun, 15 Mar 1998 17:00:58 -0600, "Wick" <CandSXX@SWBell.net> wrote:
>
>Could you please explain how "the solver" works.
>
>>I am not formiliar with the first equation you asked about but have found
>>that in design of a 555 circuit the solver works wonders.
>>
>>
>>>2) Calculating the values of two resistors and a capcitor needed to
>>>set the frequency of a 555 IC.
>>>I would need to enter a look-up table of the common values of
>>>resistors and capacitors.  Those values would then be fed into the
>>>equation f=1.44/(Ra+Rb)C.  A table or graph should be produced in
>>>which a frequency could be looked up and the values need for that
>>>frequency would be displayed.  The following tabel would be an
>>>example, but with over one hundred possibilities:
>>>Freq Ra Rb C
>>>x x x x
>>>x x x x
>>>x x x x
>>>x x x x
>>>x x x x
>>>
>>>Any advice would be appreciated
>>>Thanks,
>>>Dean,
>>>(remove "removethisfirst" from Email address to reply)
>>
>>
>
>Dean,
>(remove "removethisfirst" from Email address to reply)
>


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