I am having problem to select contours with the following expression:
"ELEV" % 0.05=0
As I understand this should select any contour that the remainder of the division by .05 is 0. For instance, contours with an elev value of 2.1 or 2.15 or 2.2 or 2.25 should be selected. Nevertheless they are not selected. This affects the rule based symbology or labeling and select features by attributes. Contours were generated with the QGIS contour extraction tool. What I am doing wrong?