import java.io.*;

class ylesanne{

	public static void main(String[] args){
	
		final double hbar=1.05459e-34;
		final double m=9.109534e-31;
		final double e_0=1.602189e-19;

    	double dE=1e-3*e_0;
    	double dz=5e-12;
    	double E;
    	double psi0=0,psi1=0,psi2=0;
    	double z;
    
    System.out.println(e_0);
    	BufferedWriter out;
    	try {
    		out = new BufferedWriter(new FileWriter("fail.csv"));
   
    		out.write("E;psi(infty)\r\n");
    

    		for (E=0; E<e_0; E+=dE) {
        		psi0=0;
		        psi1=1;
		        for(z=dz;z<500e-10;z+=dz){
		            psi2=(2*m*(dz/hbar)*(dz/hbar)*(e_0*((z*z)/(500e-10))-E)+2)*psi1-psi0;
		            psi0=psi1;
		            psi1=psi2;  
		        }
          
        		out.write(E/(1e-3 * e_0)+";"+psi2+"\r\n");
              	//System.out.println(E/(1e-3 * e_0)+";"+psi2+"");
    		}
    		out.close();
 		} catch (IOException e){}
    
	}
}