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  • \$\begingroup\$ That directly uses the ^ operator, doesn't it. It is forbidden by the rules \$\endgroup\$ Commented Feb 22, 2014 at 20:48
  • \$\begingroup\$ @mniip: Is e^ is a single operator on the TI-83 series? I don't remember. Either way, it's violating the spirit of the rules. \$\endgroup\$ Commented Feb 22, 2014 at 21:29
  • \$\begingroup\$ @Mechanicalsnail It doesn't matter I would say. In most languages you could just do exp(ln(x)/3) or e^(ln(x/3)) if you allowed any of these two. But somehow I understand to exp(ln(x)/a) as too much equivalent to x^(1/a) to be allowed by the rules :-/ \$\endgroup\$ Commented Feb 22, 2014 at 21:56
  • \$\begingroup\$ Exponential function: "a function whose value is a constant raised to the power of the argument, especially the function where the constant is e." ... "No use of methods/operators that can raise a number to a power" \$\endgroup\$ Commented Feb 28, 2017 at 15:11
  • \$\begingroup\$ Thanks for the catch @mbomb007, I wrote this answer more than 3 years ago and I will fix it to comply now. \$\endgroup\$ Commented Feb 28, 2017 at 15:36