square root
The operand in a square-root operation was negative.
This error terminates the program with exit code 136.
Note The sqrt function in the C run-time library and the FORTRAN intrinsic function SQRT do not generate this error. The C sqrt function checks the argument before performing the operation and returns an error value if the operand is negative. The FORTRAN SQRT function generates the DOMAIN error M6201 instead of this error.