I think that you can write directly ![enter image description here] : http://community.wolfram.com//c/portal/getImageAttachment?filename=Untitled-1_1.png&userId=973597
I needed to make the first order Taylor series with the function Series. I received a second order term in the result. Mathematica version 184.108.40.206 on Mac. I think that something is wrong with the function Series. I take a simple function as...