Evaluate
\frac{23}{300000000}\approx 0.000000077
Factor
\frac{23}{3 \cdot 2 ^ {8} \cdot 5 ^ {8}} = 7.666666666666666 \times 10^{-8}
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\frac{2.3}{3\times 10^{7}}
Cancel out 10 in both numerator and denominator.
\frac{2.3}{3\times 10000000}
Calculate 10 to the power of 7 and get 10000000.
\frac{2.3}{30000000}
Multiply 3 and 10000000 to get 30000000.
\frac{23}{300000000}
Expand \frac{2.3}{30000000} by multiplying both numerator and the denominator by 10.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}