Is it a formally acceptable use of ≈ to express a rational number rounded to an arbitrary number of significant digits?
For example, $\frac{4}{7}\approx0.57.$
If formally acceptable, is it expected?
Is it a formally acceptable use of ≈ to express a rational number rounded to an arbitrary number of significant digits?
For example, $\frac{4}{7}\approx0.57.$
If formally acceptable, is it expected?
I see $\approx$ to mean close enough for the purpose at hand. Rounding rationals is one of many cases, $\sqrt 2 \approx 1.414$ is another, also earth population $ \approx 7$ billion. Some people will use $=$ for anything that comes out of a calculator, but $\sqrt 2 = 1.41421$ is discouraged here.