Purpose
Set the
format for printing real numbers.
Synopsis
int XPRBsetrealfmt(XPRBprob prob, const char *fmt);
Arguments
|
prob
|
Reference to a problem.
|
|
fmt
|
Format string (as used by the C function printf). Simple format strings are of the form %n where n may be, for instance, one of
|
g
|
default printing format (precision: 6 digits; exponential notation if the exponent resulting from the conversion is less
than -4 or greater than or equal to the precision)
|
|
.numf
|
print real numbers in the style [-]d.d where the number of digits after the decimal point is equal to the given precision
num.
|
|
Return value
0 if function executed successfully, 1 otherwise.
Example
This example sets the number printing format to 10 digits after the decimal point:
XPRBprob expl2;
expl2 = XPRBnewprob("example2");
XPRBsetrealfmt(expl2, "%.10f");
Further information
1. In problems with very large or very small numbers it may become necessary to change the printing format to obtain a more exact
output. In particular, by changing the precision it is possible to reduce the difference between matrices loaded in memory
into Xpress-Optimizer and the output produced by exporting them to a file.
2. This function can be used before any problem has been created (with first argument NULL). In this case the setting applies to all problems that are created subsequently.
Related topics
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