已知一圆的弦长为L=3.8米,其所对应的弧长为C=5.5米,求圆的半径R?
Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn
R0=2
R1=1.909
R2=1.918
R3=1.918
圆的半径R=1.918米.