QyY+SSJoRzYiJCIiJiEiIiIiIj5JIkxHRiVGKUYpFinding eigenvalues for Robin conditions. (Physical conditions)QyQ+SSNldkc2Ii1JJHNlcUclKnByb3RlY3RlZEc2JC1JJ2Zzb2x2ZUdGJTYkLy1JJHRhbkdGJTYjSSJ6R0YlLCQqKEYxIiIiSSJoR0YlISIiSSJMR0YlRjZGNi9GMTsqJiwmSSJuR0YlRjQjRjYiIiNGNEY0SSNQaUdGKEY0KiYsJkY8RjQjRjRGPkY0RjRGP0Y0L0Y8O0Y0IiM1RjQ=JSFH