这是另外几个测试函数，通过这个测试函数可以比较算法性能的优劣。-This is another test a few functions, through this test function can compare the algorithm performance is good or bad.

THIS PROGRAM IS TO SOLVE THE 4TH ODE & THE RUNGE KUTTA IS USED IN ORDER TO SOLVE THE EQ <<SIN(X)*Y""=(1-X^2)*Y" -X*Y"-Y -Y+EXP(3*X)>> & THE BOUNDARY CONDITIONS ARE AS FOLLOW: Y=W1 Y =W2=F1 Y"=W3=F2 Y =W4=F3 F4=(1/SIN(X))*[(1-