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Radian-Degree Calculator is a Windows program for:
- converting radians to and from degrees, minutes and seconds
- converting decimal degrees to and from degrees, minutes and seconds,
- converting decimal degrees to and from degrees and decimal minutes, and
- performing addition and subtraction of angles
Here is a screenshot:
Input values may be in the range -360° 0' 0" through 360° 0' 0" for degrees and the equivalent for radians (thus -2π through 2π). Addition and subtraction of angles is modulo 2π, as shown in the second conversion/addition in the example above. The number of decimal places in the results can be increased or decreased by setting the value for 'Significant figures' (from 6 through 9).
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(10% discount)via Kagi via Share-it or via PayPal When the 'Round to minutes' checkbox is checked, the result in degrees is rounded to the nearest minute. When the 'Output in decimal' checkbox is checked, the result is given either in (a) decimal degrees or (b) degrees and decimal minutes. An input radian value may be negative. To input a negative degrees value, enter the value and click on the 'Change sign' button. All this is illustrated in the results shown below:
To convert decimal degrees (plus optionally decimal minutes and decimal seconds) into degrees, minutes and seconds, enter the degrees value and click on the 'Degrees to radians' button, then click on the 'Radians to degrees' button, as illustrated in the results shown below:
To convert decimal degrees into degrees plus decimal minutes, or vice-versa, enter the degrees value and click on the 'Degrees to radians' button, then click on the 'Radians to degrees' button, as illustrated in the results shown below. Make sure that the 'Output in decimal' checkbox is checked, and the decimal degrees/minutes selection is appropriate.
Addition and subtraction of angle values may be performed as follows:
- To add an angle A to an angle B, where the values are given in radians:
Enter B in the 'Radians' textbox, then enter A in the second textbox, then click on the '+' button.- To subtract an angle A from an angle B, where the values are given in radians:
Enter B in the 'Radians' textbox, then enter A in the second textbox, then click on the '-' button.- To add an angle A to an angle B, where the values are given in degrees:
Enter A in the 'Degrees' etc. textboxes then click on the 'Degrees to radians' button. The result appears in the 'Radians' textbox. Click on the '->' button to move it to the second textbox. Then enter B in the 'Degrees' etc. textboxes and again click on the 'Degrees to radians' button. The result again appears in the 'Radians' textbox. Click on the '+' button to perform the addition, then click on the 'Radians to degrees' button to get the result in degrees.- To subtract an angle A from an angle B, where the values are given in degrees:
Follow the procedure above, but instead of clicking on the '+' button, click on the '-' button to perform the subtraction, then click on the 'Radians to degrees' button to get the result in degrees.These four operations are illustrated by the results shown below:
As noted above, addition and subtraction of angles is performed modulo 2π.
Trial version: A copy of the Radian-Degree Calculator installation program can be downloaded for the purpose of installing a trial version of the program for evaluation. Click on the following link for further information:
Download Radian-Degree Calculator ...
Price and ordering: A single-user license for Radian-Degree Calculator costs US$14.25, €10.95 or £9.25 (excluding any sales tax). Purchase via any of the links at right. After a user license has been purchased an activation key will be sent by email to make the software fully-functional. An activation key can be sent immediately if purchasing via Paymate. (How?)
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(10% discount)via Kagi via Share-it or via PayPal Refund: A refund will be provided promptly up to thirty days after purchase if the software does not perform satisfactorily.
Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.
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