minor math fact OTD
May. 12th, 2005 03:59 pmA difference between two logged quantities, when unlogged, gives one a RATIO between the quantities, not a difference.
E.g. if log10(A) - log10(B) = X, then 10^X = A/B, *not* A - B.
Good thing I caught this. Most of the mistakes I make in my work are due to simple mathematical issues like this.
gah!
E.g. if log10(A) - log10(B) = X, then 10^X = A/B, *not* A - B.
Good thing I caught this. Most of the mistakes I make in my work are due to simple mathematical issues like this.
gah!