Half-exponential function: Difference between revisions

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\begin{cases}
\log_e\left(e^x +\tfrac12\right) & \mbox{if } x \le -\log_e 2, \\
e^x - \tfrac12 & \mbox{if } {-\log_e 2} \le x \le 0, \\
x +\tfrac12 & \mbox{if } 0 \le x \le \tfrac12, \\
e^{x-1/2} & \mbox{if } \tfrac12 \le x \le 1 , \\