# How Do I Calculate Latitude Differences?

For convenience in locating the geographic position of different places on the Earth's surface, the surface is covered by an imaginary grid, which is depicted on maps as vertical and horizontal lin...
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http://www.ehow.com/info_8319618_do-calculate-latitude-differences.html

## How to Calculate Sunrise by Latitude?

Calculating the sunrise based on your latitude requires a complex formula. Many sites offer sunrise calculators, but many do-it-yourselfers would rather test the means of calculation to draw their ...
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http://www.ehow.com/how_8495097_calculate-sunrise-latitude.html

## How to Calculate Lines of Latitude?

Longitude and latitude are the geographic coordinates of the spherical Earth used to calculate location on the Earth's surface. Latitude and longitude lines are navigational tools that have been us...
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http://www.ehow.com/how_8326162_calculate-lines-latitude.html

## How to Calculate Mean Differences?

Calculating the mean difference of a series of numbers is a simple process, as the mean is essentially the average number in a series of differing numbers. Hence, when calculating the mean differen...
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http://www.ehow.com/how_8145127_calculate-mean-differences.html

## How To Calculate Percentages & Differences?

A percentage is a number out of 100. For instance, instead of saying it rained 10 out of 100 days, you can say it rained 10 percent of the time. It is commonly used as a way to compare quantities. ...
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http://www.ehow.com/how_6459886_calculate-percentages-differences.html