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<?php var_dump(exp(2) === M_E ** 2); var_dump(exp(2) - M_E ** 2); var_dump(exp(2) - pow(M_E, 2)); var_dump(M_E ** 2 === pow(M_E, 2));
Output for git.master_jit, git.master
bool(false) float(8.881784197001252E-16) float(8.881784197001252E-16) bool(true)

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