showtangent

vykresluje graf a tečnu ke grafu funkce f(x) v daném bodě [ a,f(a) ]
Syntaxe:

showtangent(f(x),x=a)

[D, Diff, Doubleint, Int, Limit, Lineint, Product, Sum, Tripleint, changevar, completesquare, distance, equate, extrema, integrand, intercept, intparts, leftbox, leftsum, makeproc, middlebox, middlesum, midpoint, powsubs, rightbox, rightsum, showtangent, simpson, slope, Sum,summand, trapezoid]

> showtangent(x^2+1,x=6);
    

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