Evaluate
25.7
Factor
\frac{257}{2 \cdot 5} = 25\frac{7}{10} = 25.7
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0.16\times 100+0.7\times 10+2.7
Calculate 10 to the power of 2 and get 100.
16+0.7\times 10+2.7
Multiply 0.16 and 100 to get 16.
16+7+2.7
Multiply 0.7 and 10 to get 7.
23+2.7
Add 16 and 7 to get 23.
25.7
Add 23 and 2.7 to get 25.7.
Examples
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Linear equation
y = 3x + 4
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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}