@@ -549,7 +549,7 @@ void tube_drawCharacter(cairo_t *cr, cairo_t *cr2, char ch)
break;
case 72: sprintf(s,"\u2206");
case 73: sprintf(s,"\u23B1"); // does not work
case 73: sprintf(s,"\u03B9");
case 74: sprintf(s,"\u2218");
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