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ln and log
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I'm having a discussion with my girlfriend about ln and log and what they mean. Please chime in.

My position is that I almost never need logarithms of bases other than e, and that ln just feels all kinds of weird, and so I always write log instead of ln, and if I need another base I will denote it explicitly, such as log2.

Her position is that log without a base subscript is always to be understood as base 10 logarithm, and I am better off using ln for the natural logarithm.

I hope /r/math can help us resolve this conflict of potentially apocalyptic significance.

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Applied Math

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10 years ago