N roads diverged in a Euclidean wood,
N greater than or equal to two
And sorry I could not travel all N
And be one Mathmen, long I looked
And wrote the equations, as many as I could;
Then took another, as just as straight,
And having perhaps the better slope,
Because its denominator's irrational and wanted rational;
Though as for that the examiner there
Had made them really about the same,
And both that minute equally lay,
On pages no pen had marked black.
Oh, I kept all but one, nC1, for another day!
Yet knowing how method leads onto way
I doubted if I ever should come back.
I shall be telling this with a sign
Somewhere ITs and IITs hence:
N roads diverged in a wood, and I—
I took one nC1 by,
And that has made all the difference.
