Varying two dependent variables

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irina Tatu
irina Tatu on 25 Jan 2012
Well I have parameter a and it depends on t. I vary t from 0 to 10 with the command 0:10. a is a function of t. further i want to limit the domain in which a varies. For example, it a varies between [-10;10] I want to limit it to vary between [-5;5].
Any help please?
Thank you
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Andrew Newell
Andrew Newell on 25 Jan 2012
If you are asking the question you seem to be asking, just divide a by 2.

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Answers (3)

Sean de Wolski
Sean de Wolski on 25 Jan 2012
or use min() and max() to operate the saturation.
b = min(max(-10:10,-5),5)

irina Tatu
irina Tatu on 26 Jan 2012
the domains are just an example. the actual domains are the following: t varies 6*3600:18*3600 (seconds, t being the time) a is an angle that varies with time, its maximum domain is from [-90;90] degrees. I want to limit it to [-60;60] degrees, or [-30;30] degrees or [-15;15] degrees.
Further I compute another parameter that depends on a. I have to build these 3 curves (where the angle varies within these 3 domains) and compare them.

Walter Roberson
Walter Roberson on 26 Jan 2012
What do you want to have happen when the domains are exceeded? Should the values be linearly mapped from the previous domains to the new domains (so, e.g., -45 would map to -7.5), or should the values be "clamped" so that anything below -15 should be limited to -15 ?
Or are you perhaps hoping for a routine that takes an expression or function in 't', figures out the range of 'a' values it calculates, and writes a new "similar" expression or function that has the desired new range?

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