Evaluate
\frac{1000000}{\pi }\approx 318309.886183791
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\frac{1}{\pi \times 10^{-6}}
Multiply 2 and 0.5 to get 1.
\frac{1}{\pi \times \frac{1}{1000000}}
Calculate 10 to the power of -6 and get \frac{1}{1000000}.
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