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$A_{1}(a,b) = 2\cos(2b-a+1)$

$A_{2}(a,b) = 2\cos(-2b-a+1)$

$A_{3}(a,b) = 2\cos(2b+a+1)$

I want to know which waves are moving $+a$ or $-a$

Thanks

Robert Howard
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Nancy
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    Can you explain what you meant by "How can I plot.."? Are you looking for specific plotting software? (There are plenty) Or suggestions on how to plot two variable functions in general? – OnceUponACrinoid Feb 25 '17 at 06:03
  • Is b the variable of time? If not, what do you mean by 'moving'? – Ofek Gillon Feb 25 '17 at 06:15

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