series,x,y
tanh(a),0,0.0
tanh(a),0.01,0.00999966667999946
tanh(a),0.05,0.04995837495787998
tanh(a),0.1,0.09966799462495582
tanh(a),0.25,0.24491866240370913
tanh(a),0.5,0.46211715726000974
tanh(a),1,0.7615941559557649
tanh(a),2,0.9640275800758169
tanh(a),3,0.9950547536867305
tanh(a),4,0.999329299739067