The EXP function returns ex (the base of natural logarithm) raised to a power.
EXP( x )
SELECT EXP(1), EXP(0);
exp(1) exp(0)
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2.718281828459045e+000 1.000000000000000e+000
SELECT EXP(-1), EXP(2.00);
exp(-1) exp(2.00)
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3.678794411714423e-001 7.389056098930650e+000