To my understanding, you created a network but getting different values (like multiplied with 'e') when testing with test data.
MATLAB uses the 'e' notation to format numeric values and is not using it as a mathematical constant e.
According to notation: aeb ==> a * (10 ^ b).
- 2e3 ==> 2000
- 1.567e4 ==> 15670
And so on...
You can change the output display format to get the desired format using 'format' function.
You can refer to format MathWorks Documentation page to learn more about setting output display format.