Sharp EL-5230, EL-5250 operation manual Coordinate Conversions, r =, x =, y =

Chapter 3: Scientific Calculations

Coordinate Conversions

Conversions can be performed between rectangular and polar coordinates.

Y P (x, y)

y
0	x	X

Y		P (r, θ)
	r
0	θ	X

Rectangular coordinate Polar coordinate

•Before performing a calculation, select the angular unit.

•The calculation result is automatically stored in memories.

•Value of r: R memory

•Value of θ: θ memory

•Value of x: X memory

•Value of y: Y memory

•r and x values are stored in the last answer memory.

Example			Key operations	Result
x = 6	r =		j6 ,4	r= 7.211102551
y = 4 →	θ = [°]		@u	= 33.69006753
r = 14	→	x =	14,36	x= 11.32623792
θ = 36[°]		y =	@E	y= 8.228993532

47