charts: switched from bullet operator to multiplication sign for numbers

The previous switch to pango used the bullet operator for the display
of scientific numbers in charts. Now the numbers are displayed in the
form: 1.5x10^5 instead as 1.5.10^5.

diff --git a/src/math/chart-geometry.c b/src/math/chart-geometry.c
index 1265a61eb872a1713813d406ba80096251acb916..f74c0aaf9ca31a5ef98fef5682c629d436a62c90 100644 (file)
--- a/src/math/chart-geometry.c
+++ b/src/math/chart-geometry.c
@@ -138,7 +138,7 @@ chart_get_ticks_format (const double lower, const double interval,
          /* log10(0.2E9) = 8.30, log10(0.5E9) = 8.69, log10(1.0E9) = 9    */
          /* 0.2 and 0.5 need one decimal more. For stability subtract 0.1 */
          nrdecs = MIN(8,(int)(ceil(logshift-logintv-0.1)));
-         format_string = xasprintf("%%.%dlf&#8901;10<sup>%d</sup>",nrdecs,logshift);
+         format_string = xasprintf("%%.%dlf&#215;10<sup>%d</sup>",nrdecs,logshift);
        }
     }
   else /* logmax and logintv are < 0 */
@@ -153,7 +153,7 @@ chart_get_ticks_format (const double lower, const double interval,
        {
          logshift = (int)logmax-1;
          nrdecs = MIN(8,(int)(ceil(logshift-logintv-0.1)));
-         format_string = xasprintf("%%.%dlf&#8901;10<sup>%d</sup>",nrdecs,logshift);
+         format_string = xasprintf("%%.%dlf&#215;10<sup>%d</sup>",nrdecs,logshift);
        }
     }
   *scale = pow(10.0,-(double)logshift);