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 Feb25 awarded Popular Question Jan5 awarded Yearling Dec9 awarded Caucus Nov6 awarded Popular Question Sep9 awarded Popular Question Jul2 awarded Curious May23 awarded Popular Question Apr23 awarded Popular Question Apr10 awarded Popular Question Apr9 awarded Notable Question Feb18 comment How to round $0.03446$ to three decimal places? In addition to the answers already posted, this link has a good explanation about rounding in general: cstl.syr.edu/fipse/decunit/roundec/roundec.htm. Jan29 awarded Popular Question Jan17 asked Second order ODE near regular singular point Jan5 awarded Nice Question Jan5 awarded Yearling Nov30 accepted Solve the ODE $yy'' + (y')^2 = 0$ Nov30 comment Solve the ODE $yy'' + (y')^2 = 0$ @Did: Yes, but the book wants me to use that $v=y'$ substitution, so I am still interested in getting that solution correct. Nov30 revised Solve the ODE $yy'' + (y')^2 = 0$ added 141 characters in body Nov30 comment Solve the ODE $yy'' + (y')^2 = 0$ @Did: I put my doubt in more detail in an "Update" at the end of the original question. Nov30 comment Solve the ODE $yy'' + (y')^2 = 0$ This result matches the one that I found (with absolute value bars). The answer given by the book where I found this question doesn't have absolute value signs ($\dfrac{y^2}{2}=c_1t + c_2$), which I believe is incomplete, but I'm not sure (I added an update at the end of the question regarding this doubt).