Home
| math | handbook
| dictionary | function | eq.
| graphics
| coding
| example
| help
| ?
| 中文
Input:
fourier(x)
Write:
`fourier(x)`
Compute:
$$fourier(x)$$
Output:
$$fourier(x)== \frac {(\sum _{k=1} ^ {3} (\frac {(-cos(k\ \pi ))}{k}\ \pi +\frac {(-cos((-k)\ \pi ))}{k}\ \pi +\frac{1}{k^2}\ sin(k\ \pi )-\frac{1}{k^2}\ sin((-k)\ \pi ))\ sin(k\ x))}{\pi }$$
Result:
Home | list | about | wiki | forum | contact | donate | index | ? | 中文