# user31683

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bio website location Sevastopol, Russia age 28 member for 2 years, 4 months seen Aug 13 at 19:10 profile views 26

 Aug12 comment How to find a basis of an image of a linear transformation? @BenWest thanks to you and André Nicolas, now it seems clear to me. Aug12 comment How to find a basis of an image of a linear transformation? could you please provide an example? Jul30 comment reduction of $6xy + 8 y^2 -12x-26y + 11 = 0$ to canonical one of a second-order curve thank you, but the main confusing thing was why I was not able to get the correct coordinates of transformed system's origin. Jul29 comment reduction of $6xy + 8 y^2 -12x-26y + 11 = 0$ to canonical one of a second-order curve sorry, but I missed the point. Could you please detail how can I get the right answer (that the given equation is an equation of a hyperbola, which is rotated and shifted to the point (-1,2))? Jul29 comment reduction of $6xy + 8 y^2 -12x-26y + 11 = 0$ to canonical one of a second-order curve thank you, I did not know about this way. I'll try it asap. Jul27 comment Could anybody provide a more detailed explanation of a tangent equation in its general form? thank you, it just did not come to my mind that ' symbol has a meaning of a derivative. And in the textbook this word was not mentioned Jul27 comment how to prove $ax + by = cx + dy \implies a = c, b = d$? how you can be sure that if $x \neq 0, y \neq 0 \implies a - c = b - d$ ? Could you please detail this? Jul27 comment how to prove $ax + by = cx + dy \implies a = c, b = d$? and what if both x and y are 1? Jul27 comment how to prove $ax + by = cx + dy \implies a = c, b = d$? I think they are both supposed to be 1, cause I saw this in the proving of coordinate transformation formula. x and y are the orts of the x and y axes. Jul26 comment How to find an equation of a plane perpendicular to two other planes and passing through a point possible duplicate of Find a plane that passes through a point and is perpendicular to 2 planes Jul26 comment Plane parallel to two lines and goes through a point? please, accept the answer Jul26 comment Determining the equation of a plane that contains one point and one line. @ZolTunKul so did you checked this? Two months have passed. Jul25 comment Software for plotting functions… Any suggestions? it seems as Oracle. Here id a screenshot saveimg.ru/show-image.php?id=c49cb5f2ae39b4026a383a64d4c2b56b Jul25 comment Software for plotting functions… Any suggestions? actually it can proceed from this dialog window, but the app freezes after a couple of seconds anyway Jul25 comment Software for plotting functions… Any suggestions? it does not work on windows either. The same thing. The program opens then I see the dialog box, as on the screenshots, and the program freezes. Jul25 comment Software for plotting functions… Any suggestions? Jul25 comment Software for plotting functions… Any suggestions? no, the first window I see when open the program is saveimg.ru/pictures/25-07-14/… after pressing ok I see this saveimg.ru/pictures/25-07-14/… and at that moment the program becomes unresponsive. Jul24 comment Software for plotting functions… Any suggestions? it does not. When I run it the window opens and another one too with the text like 'update' or something similar. And I cannot close this window, the program becomes unresponsible at all. Jul24 comment Software for plotting functions… Any suggestions? it seems promising, but does not work on Ubuntu May8 comment Can somebody provide an explanation to the formula of a one elementary integral? @Artem, thank you very much!