### man page oddities

Feb. 12th, 2006 06:51 pm**bc(1)**:

MATH LIBRARY

If bc is invoked with the -l option, a math library is preloaded and

the default scale is set to 20. The math functions will calculate

their results to the scale set at the time of their call. The math

library defines the following functions:

s (x) The sine of x, x is in radians.

c (x) The cosine of x, x is in radians.

a (x) The arctangent of x, arctangent returns radians.

l (x) The natural logarithm of x.

e (x) The exponential function of raising e to the value x.

**j (n,x)**

The bessel function of integer order n of x.

The bessel function of integer order n of x.

*One of these things is not like the others, one of these things is just not right...*