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== `sum_0^oo ` mathHandbook.com

+ - * / ^ ! o `oo` `alpha` `beta` `gamma` `Gamma` `theta` `pi` ( ) ,
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f(x) = x; `sum_(x=0)^oo`f(x) `int`y(x) dx `int y(x) (dx)^0.5` `int_0^1` sin(x) dx `d/dx`y(x) `(d^(1) y)/dx^(1)` y' `y^((1))(x)`








Input:
dsolve(ds(y,x,2)-2y=exp(x))

Write:
`dsolve(ds(y,x,2)-2y=exp(x))`



Compute: $$dsolve(\frac{d^{{2}}y}{dx^{{2}}}-2\ y=exp(x))$$

Output: $$ dsolve(\frac{d^{{2}}y}{dx^{{2}}}-2\ y=exp(x)) == C_2\ exp(\sqrt {2}\ x)+C_1\ exp((-\sqrt {2})\ x)-exp(x) $$ Result:$$C_2\ exp(\sqrt {2}\ x)+C_1\ exp((-\sqrt {2})\ x)-exp(x)$$



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