Evaluate
\frac{1}{4}=0.25
Factor
\frac{1}{2 ^ {2}} = 0.25
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-16+4\times 4-\left(-4\right)^{-1}
Calculate 4 to the power of 2 and get 16.
-16+16-\left(-4\right)^{-1}
Multiply 4 and 4 to get 16.
0-\left(-4\right)^{-1}
Add -16 and 16 to get 0.
0-\left(-\frac{1}{4}\right)
Calculate -4 to the power of -1 and get -\frac{1}{4}.
0+\frac{1}{4}
The opposite of -\frac{1}{4} is \frac{1}{4}.
\frac{1}{4}
Add 0 and \frac{1}{4} to get \frac{1}{4}.
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}