TODO list

== 롼γȯ˴ؤ
* 䥳ӥη׻
* 󼰤η׻
* ͭͷ׻γĥʤ٤ˡʳκ
* QR ˡƳ
* EOF 
* ե륿׻
* ֥åȲ
* ݥ󥽥ФμǤ fft Ƿ׻Ǥ.
  * Ǥ fft ȰۤʤäƤ, ΥޥǤɬ.
* ή롼򥪥ե饤.
  * 򤢤, ޤˡƤ.

== 롼˴ؤ
* 롼̾
* ǥ󥰥롼
* ⥸塼뤴ȤΥ롼

== 饤֥Υ󥹥ȡʤɤμմĶ˴ؤ
* 󥹥ȡˡ, USAGE ʤɤλѼԤˤ䤵ޥ˥奢
* 饤֥곫ȯΰյ, motivation (prior)
