Oracle PL/SQL Tutorial/Numerical Math Functions/SINH — различия между версиями
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Текущая версия на 10:08, 26 мая 2010
Hyperbolic Trig Functions
- SINH returns the hyperbolic sine of a value.
- COSH returns the hyperbolic cosine of a value.
- TANH returns the hyperbolic tangent of a value.
Hyperbolic trigonometric functions take arguments in radians where, radians = (angle*2* 3.1416 / 360)
14. 20. SINH 14. 20. 1. Hyperbolic Trig Functions 14. 20. 2. <A href="/Tutorial/Oracle/0280__Numerical-Math-Functions/UsingtheSINHfunctiontofindthehyperbolicsineof30degrees.htm">Using the SINH function to find the hyperbolic sine of 30 degrees</a> 14. 20. 3. <A href="/Tutorial/Oracle/0280__Numerical-Math-Functions/SINH1.htm">SINH(1)</a>
SINH(1)
SQL> select SINH(1) from dual;
SINH(1)
----------
1.17520119
Using the SINH function to find the hyperbolic sine of 30 degrees
SQL>
SQL> -- create demo table
SQL> create table myTable(
2 value1 NUMBER(3),
3 value2 NUMBER(3),
4 value3 NUMBER(3)
5 )
6 /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into myTable(value1,value2, value3) values (30,60,90)
2 /
1 row created.
SQL> select * from myTable
2 /
VALUE1 VALUE2 VALUE3
---------- ---------- ----------
30 60 90
SQL>
SQL> SELECT SINH(value1*2*3.1416/360)FROM myTable
2 /
SINH(VALUE1*2*3.1416/360)
-------------------------
.54785487
SQL>
SQL> -- clean the table
SQL> drop table myTable
2 /
Table dropped.