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March 18, 2010 4:20pm UTC

CREATING A PERIODIC WAVE WITH flc2hs(x,scale) AND mod(a,b)

Hello,

I'm trying to build a periodical wave. I want it to be linear, with its first semiperiod as an ascendent linear function, and the second semiperiod as a descendent linear function. Just like in the attached image.

I am using the function flc2hs(x,scale) to define the steps that will build the wave. I have defined two diferent parts:

Increasing part:
flc2hs(t+1e-2, 1e-2) - flc2hs(t, 1e-2)

decreasing part:
flc2hs(t, 1e-2) - flc2hs(t,2e-2)

What i have in mind is to repeat this two steps along t with the mod(a,b) function, and to multiply them with the linear function that will define the wave form(it'll be something linearly time depending).

Could anyone help me doing this two last steps? I've been searching for the mod(a,b) function on the program guide, but there is no explanation about it.

thank you very much

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April 3, 2010 3:34pm UTC in response to Ivar Kjelberg

Re: CREATING A PERIODIC WAVE WITH flc2hs(x,scale) AND mod(a,b)

Hi Ivar,

I've been working on creating this wave, and i ve decided to define it this way:

(t*H0)*(t<0.01)+((0.02-t)*H0)*(t>0.01)

I've realised that what i was trying to do at the beginning was a bit complex. The result is on the attached image. I only need one period of this wave. If i need the wave to be periodic in time, i'll have problems, because this description is not ok, the resultant wave is permanently decreasing from t=0.01. I'll investigate more.

Thanks for the help!

Tomàs

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March 22, 2011 10:20pm UTC in response to Ivar Kjelberg

Re: CREATING A PERIODIC WAVE WITH flc2hs(x,scale) AND mod(a,b)

I too am trying to create a periodic wave with flc2hs in 3.5a.

I applied the following: flc2hs(mod(t,365.2)-120),1)-flc2hs(mod(t,365.2)-150,1))

My t is measured in days so it should be "on" from day 120 to 150, and "off" otherwise, for each 365.2 day cycles. But it only happens the one time.

Is there something I am doing incorrectly?

Thanks!

Mattie

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