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Inputing Values in an Equation.

Inputing Values in an Equation.

Postby cloudpico » Tue Mar 13, 2012 1:56 am
I'm having trouble figuring out how to get specific values out of an equation, such as " I=v/r " where i'd specify two values and want it to solve for the third. I inputed " I=v/r i=.01 Amps; r=910 ohms " How should i present it so it can sol
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Re: Inputing Values in an Equation.

Postby Nuclearman » Tue Mar 13, 2012 10:52 pm
Two things.

1. When formulas have a name, your better of simply searching for the formula's name to get something like this:
http://www.wolframalpha.com/input/?i=Oh ... _*Formula-

2. formulas can be problematic when your substituting in values with units, but typically you the following style:
Formula, variable=value, variable2=value...
-Nuclearman
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Re: Inputing Values in an Equation.

Postby cloudpico » Thu Mar 15, 2012 12:11 am
That's very helpful. Thank you!
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Re: Inputing Values in an Equation.

Postby briangilbert » Fri Mar 16, 2012 3:53 pm
I input
If current is .01 amps and resistance is 910 ohms then what is voltage
and the reply was
910 ohms
BUT
it gave an alternative interpretation
Ohm's law 910 ohms, .01 amps
and when you click on that you get the right answer.
This approach has the advantage that it encourages WA to prefer Normal English.
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