PostgreSQL/Math Functions/asin

asin(x): Returns the inverse sine of x

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postgres=# -- asin(x): Returns the inverse sine of x postgres=# SELECT asin(1), asin(0), asin(-1), asin(sin(1)) AS inverse_example;

     asin       | asin |       asin       | inverse_example

---

+------+------------------+-----------------

1.5707963267949 |    0 | -1.5707963267949 |               1

(1 row) postgres=#

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