3-15-35. George Howard Darwin to H. Poincaré
Dear Monsieur Poincaré
I have no doubt you are substantially right,11 1 Poincaré had recently charged Darwin with error (§ 3-15-34). and I cannot now recall the argument which made me think as I did. Is not it at least partially true? At any rate I have made the first calculation of my coeffts (other than ) for , and find
I shall go on and compute for – for the Jacobian is . In this way I have an independent calculation & verification.
I have found an error in my calculation of for , . It shd be & not . This does not disturb the order in which the ’s are arranged.
If it would be of any help to you I will send you my compn of the critical Jacobian.
Having struggled so much with arithmetic and realised its extreme difficulty, it is a comfort to me to hear you confess yourself a bad calculator.22 2 See Poincaré to Darwin (§ 3-15-34).
G. H. Darwin
ALS 2p. Collection particulière, Paris 75017.
Time-stamp: "18.09.2016 01:36"