How to draw a plot by coefficents?

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Evgheny
Evgheny 2011-4-11
I have 5 coefficents: for example: a = [2 3 4 5 6]
And I want to draw a plot a1 + a2*t + a3*t^2 + a4*sin(t) + a5*cos(t)
how to do this?

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Walter Roberson
Walter Roberson 2011-4-11
If t is already defined as a numeric vector, then:
y = a(1) + a(2)*t + a(3)*t.^2 + a(4)*sin(t) + a(5)*cos(t);
plot(t, y);
If t is a symbolic variable, I believe you could use the same y, but afterwards you would either have to subs() in actual numeric values or else you would have to use ezplot()

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