An other funny thing you can do with square roots: let’s take Q7, and let us look at the power series √1+X=1+12X−18X⋯. This converges for |X|<1, so that you can specialize in X=79. Now, you can also do that inside R, and the series converges to 34, ``the″ square root of 916. But in Q7 this actually converges to −34.
An other funny thing you can do with square roots: let’s take Q7, and let us look at the power series √1+X=1+12X−18X⋯. This converges for |X|<1, so that you can specialize in X=79. Now, you can also do that inside R, and the series converges to 34, ``the″ square root of 916. But in Q7 this actually converges to −34.