Sharp EL-5250, EL-5230 operation manual Time, Decimal and Sexagesimal Calculations

Chapter 3: Scientific Calculations

Time, Decimal and Sexagesimal Calculations

Conversion between decimal and sexagesimal numbers can be performed, and, while using sexagesimal numbers, also conversion to seconds and minutes notation. The four basic arithmetic operations and memory calcula- tions can be performed using the sexagesimal system. Notation for sexagesimal is as follows:

12∂34∂56.78∂

		degree			second
			minute
	Example			Key operations		Result
12°39’18.05”		j12[39[18.05
→[10]		@:				12.65501389
123.678→[60]		123.678@:				123∂40∂40.8∂
3h30m45s +		3 [30[45+6 [
6h45m36s = [60]		45[36e				10∂16∂21.∂
1234°56’12” +		1234[56[12+
0°0’34.567” = [60]		0[0[34.567e				1234∂56∂47.∂
3h45m –		3 [45 -1.69e
1.69h = [60]		@:				2∂3∂36.∂
sin62°12’24” = [10]		v62[12[24 e				0.884635235
24°→[ ” ]		24[I6				86400.
1500”→[ ’ ]		0 [0 [1500I7				25.

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