I have the following code for some equation :
which gives :
Now the numbers
a_1,a_2,\ldotshave the same number of digits ( n -digit).
How could I make the numbers to be in the same length and start/end from the same place.
I tried this :
But, I'm wondering if there is a nice way, because I have a lot of numbers like those and I need to save time .
thank you all