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+clc;
+AB=150;//m, distance AB
+s=30;//m, sag of cable
+w=45;//N/m Uniform weigth per unit length of cable
+
+//Equation of cable, by 7.16
+//Coordinates of B
+
+xB=AB/2;//m
+C=[99,105,98.4,90];//trial values
+
+for i=1:4
+ if ((30/C(i)+1)-cosh(xB/C(i)))<0.0001 then c=C(i);
+ break;
+end
+end
+yB=s+c;//m
+
+//Maximum and minimum values of tension
+Tmin=w*c;//N, To
+Tmax=w*yB;//N TB
+printf("Minimum value of tension in cable is Tmin= %.0f N\n",Tmin);
+printf("Maximum value of tension in cable is Tmax= %.0f N\n",Tmax);
+//Length of cable
+
+S_CB=sqrt(yB^2-c^2);//m, one halph length by 7.17
+S_AB=2*S_CB;//m, full length of cable
+
+printf("Fulllength of cable is s_AB= %.0f m\n",S_AB);
+