PostgreSQL/Math Functions/exp

exp(dp or numeric) exponential

postgres=# -- exp(dp or numeric) exponential
postgres=#
postgres=# select exp(1.0);
        exp
--------------------
 2.7182818284590452
(1 row)
postgres=#

exp(x): Returns the e constant (2.71828...), to the power of x

postgres=#
postgres=# -- exp(x): Returns the e constant (2.71828...), to the power of x
postgres=# SELECT exp(0.0) AS one,
postgres-#        exp(1.0) AS e,
postgres-#        exp(2.0) AS "e squared";
        one         |         e          |     e squared
--------------------+--------------------+--------------------
 1.0000000000000000 | 2.7182818284590452 | 7.3890560989306502
(1 row)
postgres=#