(1/2)+(1/2)sgn(x)(1-n^(-(x/k)sgn(x))) /. {n->2, k->10} for x from -50 to 50(1/2)+(1/2)sgn(x)(1-n^(-(x/k)sgn(x))) /. {n->2, k->10} for x from -50 to 50

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