Each apprentice in engineering will know from the very beginning, for instance, that the sum of two entities won’t be expressed in the following way This is far too common and has no style First lesson of mathematics

Since from the very first we all know that : And further And besides, it is well known by the connoisseurs that

Which means that we can write Much more scientifically as As well,

and

That‘s why we can take the expression And simplify it to the following

We now associate And remember that the inverse of the transposed matrix is the transpose of the inverse, so under the restriction of a one-dimesional space simplify again by introducing the vector X Which means

We associate now with giving

Put it in We get another simplified formula Now it is clear for everybody that this equation is much easier to understand than the common

In fact there are some other methods for to be simplified. These will be taught only after the apprentice engineer is ready to fully understand 1+1=2