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Oct 2, 2023 at 18:06 answer added kglr timeline score: 4
Oct 2, 2023 at 1:17 answer added ubpdqn timeline score: 5
Oct 1, 2023 at 21:29 answer added Daniel Huber timeline score: 3
Sep 30, 2023 at 23:22 history became hot network question
Sep 30, 2023 at 22:31 answer added cvgmt timeline score: 6
Sep 30, 2023 at 16:49 answer added vindobona timeline score: 4
Sep 30, 2023 at 15:59 comment added cvgmt For example, I always use Y==((f[x]-f[x0])/(x-x0))*(X-x0)+f[x0] to express a line which passes through the point {x0,f[x0]} and {x,f[x]}. {x,y} is on the curve {x,f[x]} and {X,Y} is on the line.
Sep 30, 2023 at 15:50 comment added azerbajdzan It is the same as mine you just renamed variables and the result tangent is in X, Y which you have to replace by another rule to have it in desired x, y variables.
Sep 30, 2023 at 15:45 comment added cvgmt {x,y} is on the curve cu and {X,Y} is on the tangen line. D[cu, {{x, y}}] . ({X, Y} - {x, y}) /. {x -> 8, y -> 7} // Expand
Sep 30, 2023 at 15:22 history asked azerbajdzan CC BY-SA 4.0