#includevoid main(){int i, j;float YN[100], TNF, TN, DT, YNP1[100], n;double K1[100], K2[100], K3[100], K4[100];/*TN = tn, the initial value of t. YN = yn, the initial value of y. DT = △t, the step size.YNP1 = yn+1, the final value of y.*/TNF=TN=DT=0;printf ("n the initial value of t?(정수로 입력하시오)");scanf("%f",&TN);printf ("n the final value of t?(정수로 입력하시오)");scanf("%f",&TNF);printf ("n △t, the step size?(0.1 or 0.2)");scanf("%f",&DT);for(i=0; i