//-sin(x) + x*cos(x) \
||------------------ for x != 0|
|| 2 |
x*|< x | + sinc(x)
|| |
|| 0 otherwise |
\\ /
$$x \left(\begin{cases} \frac{x \cos{\left(x \right)} - \sin{\left(x \right)}}{x^{2}} & \text{for}\: x \neq 0 \\0 & \text{otherwise} \end{cases}\right) + \operatorname{sinc}{\left(x \right)}$$
// /2*(-sin(x) + x*cos(x)) \ \
//-sin(x) + x*cos(x) \ ||-|---------------------- + sin(x)| |
||------------------ for x != 0| || | 2 | |
|| 2 | || \ x / |
2*|< x | + x*|<----------------------------------- for x != 0|
|| | || x |
|| 0 otherwise | || |
\\ / || 0 otherwise |
\\ /
$$x \left(\begin{cases} - \frac{\sin{\left(x \right)} + \frac{2 \left(x \cos{\left(x \right)} - \sin{\left(x \right)}\right)}{x^{2}}}{x} & \text{for}\: x \neq 0 \\0 & \text{otherwise} \end{cases}\right) + 2 \left(\begin{cases} \frac{x \cos{\left(x \right)} - \sin{\left(x \right)}}{x^{2}} & \text{for}\: x \neq 0 \\0 & \text{otherwise} \end{cases}\right)$$
// /2*(-sin(x) + x*cos(x)) \ \ // 3*sin(x) 6*(-sin(x) + x*cos(x)) \
||-|---------------------- + sin(x)| | ||-cos(x) + -------- + ---------------------- |
|| | 2 | | || x 3 |
|| \ x / | || x |
3*|<----------------------------------- for x != 0| + x*|<------------------------------------------- for x != 0|
|| x | || x |
|| | || |
|| 0 otherwise | || 0 otherwise |
\\ / \\ /
$$x \left(\begin{cases} \frac{- \cos{\left(x \right)} + \frac{3 \sin{\left(x \right)}}{x} + \frac{6 \left(x \cos{\left(x \right)} - \sin{\left(x \right)}\right)}{x^{3}}}{x} & \text{for}\: x \neq 0 \\0 & \text{otherwise} \end{cases}\right) + 3 \left(\begin{cases} - \frac{\sin{\left(x \right)} + \frac{2 \left(x \cos{\left(x \right)} - \sin{\left(x \right)}\right)}{x^{2}}}{x} & \text{for}\: x \neq 0 \\0 & \text{otherwise} \end{cases}\right)$$