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Displaying a quadratic equation

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James
James 2013-9-24
评论： James 2013-9-30
Hi im very new to Matlab and help would be greatly appreciative
Consider the quadratic equation of the form: ax^2 + bx + c = 0, where a,b,c are constants
(a) Write a MATLAB function having the coefficients a, b, c as input arguments to determine the quadratic roots of the equation. Specifically, display the two roots in the Command Window using the following format:
The first root = r1 The second root = r2
(b) Utilize the function created in part (a) to find the roots of the quadratic equations specified by the Lab TA. Tabulate the results.
  2 个评论
Azzi Abdelmalek
Azzi Abdelmalek 2013-9-24
This a homework. What have you done so far? What problem have you encountered?
James
James 2013-9-30
function parallel = parallel® R=(1e4); rp(1,1) = R; for n = 1:99 rp(n+1) = (rp(n)*R)/(rp(n) + R); bar(rp) end n = 1:100; plot(n, rp(n))
I got the answer I was missing a semi colon that why i was getting an error

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采纳的回答

Matt J
Matt J 2013-9-24
编辑：Matt J 2013-9-24
The roots() command will be helpful, see "doc roots" for usage. The disp command should also help, e.g,
>> disp(['Here is a number, ', num2str(3), '. It is the number three.'])
displays,
Here is a number, 3. It is the number three.

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James
James 2013-9-30
I got the answer I was having problem with a simple problem i was missing a semi colon lol
function parallel = parallel® R=(1e4); rp(1,1) = R; for n = 1:99 rp(n+1) = (rp(n)*R)/(rp(n) + R); bar(rp) end n = 1:100; plot(n, rp(n))

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