## How To

### Inputing Values in an Equation.

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**1**of**1**• [ 4 posts ]### Inputing Values in an Equation.

by » Tue Mar 13, 2012 1:56 amI'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

- cloudpico
**Posts:**2**Joined:**Tue Mar 13, 2012 1:53 am

### Re: Inputing Values in an Equation.

by » Tue Mar 13, 2012 10:52 pmTwo 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...

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

- Nuclearman
**Posts:**343**Joined:**Sun Sep 13, 2009 6:01 pm

- cloudpico
**Posts:**2**Joined:**Tue Mar 13, 2012 1:53 am

### Re: Inputing Values in an Equation.

by » Fri Mar 16, 2012 3:53 pmI 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.

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.

Volunteer Curator http://www.bgls11958.pwp.blueyonder.co. ... /index.htm

- briangilbert
**Posts:**1158**Joined:**Mon May 18, 2009 5:30 pm**Location:**London England

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