弦长L=2000、弧长C=2001,、求圆心角A与半径R?
Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn
R0=18000
R1=18259.99
R2=18269.73
R3=18269.74
R4=18269.74
R=18269.74
A=2*ARC SIN((L/2)/R)
=2*ARC SIN((2000/2)/18269.74)
=6.275度
弦长2000、弧长2001,、求圆心角与半径
弦长L=2000、弧长C=2001,、求圆心角A与半径R?
Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn
R0=18000
R1=18259.99
R2=18269.73
R3=18269.74
R4=18269.74
R=18269.74
A=2*ARC SIN((L/2)/R)
=2*ARC SIN((2000/2)/18269.74)
=6.275度