Evaluate
4\pi ^{2}\approx 39.478417604
Expand
4\pi ^{2}
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\pi ^{2}\times 2^{2}
Expand \left(\pi \times 2\right)^{2}.
\pi ^{2}\times 4
Calculate 2 to the power of 2 and get 4.
\pi ^{2}\times 2^{2}
Expand \left(\pi \times 2\right)^{2}.
\pi ^{2}\times 4
Calculate 2 to the power of 2 and get 4.
Examples
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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