Evaluate
\frac{13\pi }{2}\approx 20.420352248
Expand
\frac{13 \pi}{2} = 20.420352248333657
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\frac{12+1}{2}\pi
Multiply 6 and 2 to get 12.
\frac{13}{2}\pi
Add 12 and 1 to get 13.
\frac{12+1}{2}\pi
Multiply 6 and 2 to get 12.
\frac{13}{2}\pi
Add 12 and 1 to get 13.
Examples
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Linear equation
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Arithmetic
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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