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2
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2
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\frac{5+2\left(15.5-15\right)}{18-15}
Subtract 5 from 7 to get 2.
\frac{5+2\times 0.5}{18-15}
Subtract 15 from 15.5 to get 0.5.
\frac{5+1}{18-15}
Multiply 2 and 0.5 to get 1.
\frac{6}{18-15}
Add 5 and 1 to get 6.
\frac{6}{3}
Subtract 15 from 18 to get 3.
2
Divide 6 by 3 to get 2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
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