Evaluate
42.4421
Factor
\frac{31 \cdot 13691}{2 ^ {4} \cdot 5 ^ {4}} = 42\frac{4421}{10000} = 42.4421
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13.0321+2.9^{2}+2\times 9+3
Calculate 1.9 to the power of 4 and get 13.0321.
13.0321+8.41+2\times 9+3
Calculate 2.9 to the power of 2 and get 8.41.
21.4421+2\times 9+3
Add 13.0321 and 8.41 to get 21.4421.
21.4421+18+3
Multiply 2 and 9 to get 18.
39.4421+3
Add 21.4421 and 18 to get 39.4421.
42.4421
Add 39.4421 and 3 to get 42.4421.
Examples
Quadratic equation
{ 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}