Eq. 3.5
dm/dt = uglystuff·ln(1+x)

Eq. 3.6
dm/dt = differentuglystuff·ln(1+y)

Eq. 5.4
y = (1+x)^φ - 1

is obtained by equalizing the equations 3.5 and 3.6, where

φ = ugly stuff that I imagine you get once you set Eq. 3.5 equal to Eq. 3.6

I'm correcting a thesis that contains a lot of ugly equations. At one point he introduces two differential equations (let's call them 3.5 and 3.6) that both start with dm/dt= ...

Later on he introduces another equation (we'll call it 5.4) and mentions "it is obtained by equalizing Eqs. 3.5 and 3.6". (See above.)

I immediately stumbled over "equalizing" and had to look back at the two previous equations to figure out what he was talking about. Thinking back to my math education I think I would say something like "by substituting Eq. 3.5 in Eq. 3.6" ... or would simply "by solving the Eqs. 3.5 and 3.6" be better? I'm pretty sure he means "gleichsetzen", and LEO only has "equalize", but I'm pretty positive that's wrong here ...

Someone already asked about a similar situation (see link), but I have no idea how wor came up with "identify"--that sounds even weirder to me than "equalize" ...

Siehe auch: Variablen in Gleichungen gleichsetzen


Any other ideas? I'm pretty sure there's a set mathematical term for this ...