Expanding a function, MATLAB in Engineering

Assignment Help:

Expanding a function:

The expand function will multiply out terms, and factor will do the opposite:

>> expand((x+2)*(x-1))

ans =

x^2 x-2

>> factor(ans)

ans =

(x 2)*(x-1)

 

The function subs will replace a value for the symbolic variable in an expression. For illustration,

>> myexp = x^3 + 3*x^2 - 2

myexp =

x^3 3*x^2-2

>> x = 3;

>> subs(myexp,x)

ans =

       52

 

With symbolic math, a MATLAB works by the default with rational numbers means that the outcomes are kept in fractional forms. For illustration, executing the addition 1/3 + 1/2 would generally answer in a double value:

>> 1/3 + 1/2

ans =

       0.8333

Though, by making the expression symbolic, the outcome is symbolic also. Any numeric function (example, double) could modify that:

>> sym(1/3 + 1/2)

ans =

5/6

>> double(ans)

ans =

       0.8333

 


Related Discussions:- Expanding a function

Tracing of square matrices, Tracing of Square matrices: The trace of a...

Tracing of Square matrices: The trace of a square matrix is the addition of all the elements on the diagonal. For illustration, for the preceding matrix it is 1 + 6 + 11 + 16,

Passing arguments to functions, Passing arguments to functions: In all...

Passing arguments to functions: In all these functions examples faraway, at least one of the arguments was passed in the function call to be the value(s) of the equivalent inp

Illustration of symbolic variable, Illustration of symbolic variable: ...

Illustration of symbolic variable: When, on the other hand, z is a symbolic variable to start with, quotes are not required around the expression, and the words are automatica

Illustration of vectors of structures, Illustration of Vectors of structure...

Illustration of Vectors of structures: In this illustration, the packages are vector which has three elements. It is shown as a column vector. Each and every element is a stru

Use of while loop, Use of While loop: Here is an illustration of calli...

Use of While loop: Here is an illustration of calling the function, passing 5000 for the value of the input argument high. >> factgthigh(5000) ans = 5040 The itera

Is functions for strings, IS Functions for Strings: There are many fun...

IS Functions for Strings: There are many functions for strings, that return logical true or false. The function isletter returns the logical true when the character is a lette

Example of modular program, Example of modular program: In a modular p...

Example of modular program: In a modular program, there would be one main script which calls three separate functions to complete these tasks: A function to prompt an us

Solving 2 × 2 systems of equations, Solving 2 × 2 systems of equations: ...

Solving 2 × 2 systems of equations: However this may be easy in a MATLAB, in normal finding solutions to the systems of equations is not. The systems which are 2 × 2 are, thou

Print from the structure, Print from the structure: To print from the ...

Print from the structure: To print from the structure, a disp function will show either the whole structure or a field. >> disp(package) item_no: 123 cost: 19.99

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd