[Qgis-user] problem with raster calculator

[Giacomo Fontanelli]

Dear forum

here is my problem.

I've got a raster layer with pixel value ranging from -8 to -15.

I found that Qgis fails when I do (layer at band1 * -1) because it produces a
map with only NaN.

I can do any operation except multiplication by a negative number.

Can you help me?

Thank you
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