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How do I write a matlab function to satisfy the conditions given?
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How do I write a matlab function to satisfy the conditions given?

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It looks like a homework. We cannot give you ready-to-use solution, but surely can help to complete it. You have almost everything. Try to put it together to a function. Ask here if you have a specific problem.
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It looks like a homework. We cannot give you ready-to-use solution, but surely can help to complete it. You have almost everything. Try to put it together to a function. Ask here if you have a specific problem.

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what about this?<br />
<br />

<pre><code id="code-1260172">function out=polyn(a,x)
p=0;
fin=length(a);
 
for i=1:fin
   
    p=p+a(i)*x^(fin-i);
end
out=p;
</code></pre>
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what about this?



function out=polyn(a,x)
p=0;
fin=length(a);
 
for i=1:fin
   
    p=p+a(i)*x^(fin-i);
end
out=p;


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I greatly appreciate the clarification and the challenge, keep up the good work; however this is not homework, just a new skill I felt the need to acquire.
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I greatly appreciate the clarification and the challenge, keep up the good work; however this is not homework, just a new skill I felt the need to acquire.

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<div class="content wysiwyg-content">
a MATLAB function polyn( a,x ) that accepts two arguments. The first is a vector of polynomial coefficients, ai such that a1 is the coefficient of the highest power of x in the polynomial<br />
p(x)=a1xn-1 +a2xn-2 +¿+an-1x+an<br />
The argument x in the function is a value of x at which the polynomial is to be evaluated. The return value of the function is the value of the function evaluated at x. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Once written test your function with the following:<br />
a. y=polyn([3421],0.5) b. y=polyn([232015],1) c. y=polyn([1;0;-2;3;0;1],2)
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a MATLAB function polyn( a,x ) that accepts two arguments. The first is a vector of polynomial coefficients, ai such that a1 is the coefficient of the highest power of x in the polynomial
p(x)=a1xn-1 +a2xn-2 +¿+an-1x+an
The argument x in the function is a value of x at which the polynomial is to be evaluated. The return value of the function is the value of the function evaluated at x.	Once written test your function with the following:
a. y=polyn([3421],0.5) b. y=polyn([232015],1) c. y=polyn([1;0;-2;3;0;1],2)

Polynomial function

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.

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MATLAB is a numerical computing environment and proprietary fourth-generation programming language. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, Java, Fortran and Python. Although MATLAB is intended primarily for numerical computing, an optional toolbox uses the MuPAD symbolic engine, allowing access to symbolic computing capabilities. An additional package, Simulink, adds graphical multi-domain simulation and model-based design for dynamic and embedded systems.