Next: LOMB(1) Up: WFDB Applications Guide Previous: IMAGEPLT(1) | On This Page |

**log10** reads its standard input, which should be in text form
and should contain two positive numbers (*x* and *y*) on each line, separated
by spaces or tabs. The standard output of **log10** contains four columns of
numbers, separated by spaces: the common (base 10) logarithms of *x* and
*y*, and the *x* and *y* values. To avoid underflow, if any input is less than
**MINDOUBLE** (defined in *<values.h>* as the smallest positive value that can be
represented as a double-precision floating point quantity), it is replaced
by that value.

Please e-mail your comments and suggestions to `webmaster@physionet.org`, or post them to:

MIT Room E25-505A

77 Massachusetts Avenue

Cambridge, MA 02139 USA

Updated 8 March 2019