Calculates the Magnetic Declination for any point on earth.
Magnetic declination is the degree difference between true north and magnetic north. It's important to know the declination of your area if you are using a magnetic compass, so you can navigate to true north.
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We have found that some problems are specific to specific locations, such as if you have poor GPS signal(satellite reception) at the time. Please explain your problems in as much detail as possible, so that we can ensure the application works well for all.