I was applying the vegetation index ($n1_ttc0003r_16(2) - $n1_ttc0003r_16(4)) / ($n1_ttc0003r_16(2) + $n1_ttc0003r_16(4)) to a multispectral image, and the raster resulting on this operation had all its values equal to -1.#IND. Can anyone help me understanding what's happening? I think this means that some pixel values of the output raster are the result of a division by zero. How can I solve this?

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