I have to keep moving my hands to the arrow keys to move in the numeric fields. For example, suppose that I am in the exponent and I want to drop down for the next operation. My hands are already on the space bar, and it is natural to want to use my thumbs. I understand that this might mean that I couldn't use space for implicit multiplication, but I don't want to use that nearly as often as I want to move in the numeric field, and I am most likely to use hard coded multiply anyway. Erring on the side of caution and all that.

~Rich~


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