Evaluate
2.61631
Factor
\frac{261631}{2 ^ {5} \cdot 5 ^ {5}} = 2\frac{61631}{100000} = 2.61631
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1.8+1.64-4.9\times 0.41^{2}
Multiply 4 and 0.41 to get 1.64.
3.44-4.9\times 0.41^{2}
Add 1.8 and 1.64 to get 3.44.
3.44-4.9\times 0.1681
Calculate 0.41 to the power of 2 and get 0.1681.
3.44-0.82369
Multiply 4.9 and 0.1681 to get 0.82369.
2.61631
Subtract 0.82369 from 3.44 to get 2.61631.
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}