Using the C Math Library

Warning Messages

All warnings begin with the string Warning:. By default, programs written using the library output a message after a warning-level event has occurred and then continue processing.

For most warning messages there is a corresponding error message. Generally, warning messages are issued in place of errors on IEEE-floating point compliant machines when an arithmetic expression results in plus or minus infinity or a nonrepresentable number. Where this is the case, the error message explanation has not been reproduced. See the section Error Messages for an explanation of these messages.

Warning: Divide by zero
Warning: Log of zero
Warning: Matrix is close to singular or badly scaled. Results may 
be inaccurate
Warning: Matrix is singular to working precision
Warning: Singularity in ATAN
Warning: Singularity in TAN

Error Messages