I have tutored people taking Calc 1, 2 and 3 at several universities in the US. There's no exact standard that I'm aware of, but they tend to closely align at

I have tutored people taking Calc 1, 2 and 3 at several universities in the US. There's no exact standard that I'm aware of, but they tend to closely align at different universities. Dividing James Stewart's Calculus into three parts is a reasonable guide: you can see the contents on Amazon preview. I'd expect solving first order linear differential equations would be solidly in Calc 2. * https://www.amazon.co.uk/Calculus-Transcendentals-International-Metric-Version/dp/1305272374/ https://www.amazon.co.uk/Calculus-Transcendentals-Internatio...