Evaluate
23.21
Factor
\frac{11 \cdot 211}{2 ^ {2} \cdot 5 ^ {2}} = 23\frac{21}{100} = 23.21
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9.98-3.84+14.07+1.39-0.47+2.08
Subtract 5.71 from 15.69 to get 9.98.
6.14+14.07+1.39-0.47+2.08
Subtract 3.84 from 9.98 to get 6.14.
20.21+1.39-0.47+2.08
Add 6.14 and 14.07 to get 20.21.
21.6-0.47+2.08
Add 20.21 and 1.39 to get 21.6.
21.13+2.08
Subtract 0.47 from 21.6 to get 21.13.
23.21
Add 21.13 and 2.08 to get 23.21.
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}