- #1
TALewis
- 201
- 0
Google has a neat calculator built into its search box. There is a good summary here:
http://www.google.com/help/calculator.html
Copy and paste the following queries to see it work:
Arithmetic operations:
sqrt((3*6/9)^2+7!)
Transcendental:
3*sin( 54 degrees )
2*log ( e / pi )
Complex numbers:
(3+7i)*(6-2i)
Unit conversions:
12 miles in kilometers
2400 joules in btu
34 degrees in radians
And now, the coolest part: physics calculations with universal constants and automatic units manipulation:
1 cm^2 * 15 feet per second in gallons per hour
1 kg * speed of light ^2
1/sqrt( permeability of free space * permittivity of free space )
sqrt( 2e-7 N/m * 2*pi * 1 m / permeability of free space )
( ( gravitational constant * Earth mass / ( 2*pi / day )^2 )^(1/3) - radius of Earth ) in miles
I know there are other tools out there that do this sort of thing (such as my TI-89), but having it on Google makes fun and easy to use for quick calculations.
http://www.google.com/help/calculator.html
Copy and paste the following queries to see it work:
Arithmetic operations:
sqrt((3*6/9)^2+7!)
Transcendental:
3*sin( 54 degrees )
2*log ( e / pi )
Complex numbers:
(3+7i)*(6-2i)
Unit conversions:
12 miles in kilometers
2400 joules in btu
34 degrees in radians
And now, the coolest part: physics calculations with universal constants and automatic units manipulation:
1 cm^2 * 15 feet per second in gallons per hour
1 kg * speed of light ^2
1/sqrt( permeability of free space * permittivity of free space )
sqrt( 2e-7 N/m * 2*pi * 1 m / permeability of free space )
( ( gravitational constant * Earth mass / ( 2*pi / day )^2 )^(1/3) - radius of Earth ) in miles
I know there are other tools out there that do this sort of thing (such as my TI-89), but having it on Google makes fun and easy to use for quick calculations.