Lines Matching refs:nan
156 % known as 'nan' or 'not a number' to indicate that this value is not part
158 % rectangular area. That is 'nan' values provide a 'mask' for the kernel
159 % shape. However at least one non-nan value must be provided for correct
233 nan = sqrt((double)-1.0); /* Special Value : Not A Number */
329 if ( LocaleCompare("nan",token) == 0
331 kernel->values[i] = nan; /* this value is not part of neighbourhood */
362 /* check that we recieved at least one real (non-nan) value! */
969 nan = sqrt((double)-1.0); /* Special Value : Not A Number */
1561 kernel->values[i] = nan;
1625 kernel->values[i] = nan;
1651 kernel->values[i] = nan;
1672 kernel->values[i] = (u == 0 || v == 0) ? args->sigma : nan;
1694 kernel->values[i] = (u == v || u == -v) ? args->sigma : nan;
1741 kernel->values[i] = nan;
2409 /* Test for Nan equivalence */
3038 background, and 1.0 for foreground with either Nan or 0.5 values
4681 (void) FormatLocaleFile(stderr," %*s", GetMagickPrecision()+3, "nan");
4750 % ZeroKernelNans() replaces any special 'nan' value that may be present in
