English: Graph of tetrations , converging to the function in black between and . Notice the convergence in , oscillating between the two branches of the bifurcation.
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Graph of tetrations <math>{}^nx</math>, converging to the function <math>\frac{W(-\ln(z))}{-\ln(z)}</math> in black between <math>e^{-e}</math> and <math>e^{1/e}</math>. Notice the convergence in <math>[0,e^{-e}]</math>, oscillating between the two branch
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This image was created with the Sage math code <pre> def bif(z): if z == 0 or z == 1: return 0 elif z == 1/e: return e^(-e) elif 0 < z and z < 1/e: return exp(lambert_w(0, z*log(z))/z) elif 1/e < z and z < 1:...