ODE No. 1001

\[ y''(x)=0 \]

✓ Mathematica : cpu = 0.0032828 (sec), leaf count = 12

DSolve[Derivative[2][y][x] == 0,y[x],x]

\[\{\{y(x)\to c_2 x+c_1\}\}\]

✓ Maple : cpu = 0.006 (sec), leaf count = 9

dsolve(diff(diff(y(x),x),x)=0,y(x))

\[y \left (x \right ) = c_{1} x +c_{2}\]

Hand solution

\[ y^{\prime \prime }=0 \]

Integration twice gives

\[ y\left ( x\right ) =c_{1}x+c_{2}\]