檢視 $SourceFrequency 的原始碼

=='''Format'''==
 $SourceFrequency
  ''freq    range    f<sub>σ</sub>    f<sub>t0</sub>''                <font color=green>// all are floating points.</font>

<font size=3>
Source%freq, Source%range, Source%fac_sig, Source%fac_t0
</font>

  When the units digit of type in [[$SourceType]] is
  1: only ''freq'' works, which represents what the frequency is.
  2: ''range    f<sub>σ</sub>    f<sub>t0</sub>''
  3: ''freq    range    f<sub>σ</sub>    f<sub>t0</sub>''
  4: ''freq    ????''

''range'' means what the bandwidth you want to simulate. <br>
''f<sub>σ</sub>'' means the edge of bandwidth is located at ''f<sub>σ</sub>''th of Gaussian sigma (σ). <br>
''f<sub>t0</sub>'' means the source starts at ''f<sub>t0</sub>'' times σ. <br>

=='''Example'''==
 $SourceFrequency
  1e15    0.5e15    3    5

This means the center of frequency is 1e15 Hz, 1.5e15 and 0.5e15 are at 3σ of Gaussian distribution, and the source will starts when the time is over 5σ.

== '''Related commands''' ==
: [[$SourceType]], [[$SourceAmp]], [[$SourcePosition]], [[$SourceFrequency]]