# Matlab Error Using Mpower Matrix Must Be Square

## Contents |

Unfortunately missing [] is not the cause, since adding them causes more errors. Since 'x' and 'n' (both scalars) don't change in the loop, mod(x,n) is always 3. Close × Select Your Country Choose your country to get translated content where available and see local events and offers. String errors[edit] There are two ways that you can create a string; use the ' string ' syntax, or type two words separated by only whitespace (not including line breaks), as have a peek here

i get the following error. ??? Privacy policy About Wikibooks Disclaimers Developers Cookie statement Mobile view y=x.^2 instead of y=x^2 Matrix multiplication requires the number of columns in the first matrix to equal the number of rows in the second. Truth in numbers Physically locating the server The mortgage company is trying to force us to make repairs after an insurance claim Meaning of S. https://www.mathworks.com/matlabcentral/newsreader/view_thread/325693

## Error Using Mpower In Matlab

Log in or Sign up here!) Show Ignored Content Know someone interested in this topic? If the error is not fatal the code may even continue, but instead displaying the error as a message or it could be converted to a warning. You can't do matrix multiplication of two 100 x 1 vectors and that is what "*" without the dot calls for.

Error in ==> func1 at 4 f1=(tanh(sqrt(((E*E)+(Delta*Delta))))/(2*kB*Temp))/(2*(sqrt(((E*E)+(Delta*Delta))))); Error in ==> @(E1)func1(E1,0,1.38065E-23,0.5) Error in ==> quad at 77 y = f(x, varargin{:}); Sarah1287, Oct 15, 2009 (Want to reply to this Date: 10 Jan, 2013 06:25:28 Message: 3 of 7 Reply to this message Add author to My Watch List View original format Flag as spam On Thursday, January 10, 2013 8:14:12 This often occurs if, for example, you are using a loop to change which part of an array is accessed, but the loop doesn't stop before you reach the end of Error Using == Mpower Matrix Must Be Square. Matlab Whether you need the "dot" before the symbol (/ * or ^) depends on what you're doing.

Forgetting the closing ' in the other syntax for a string results in an obvious error: >> A = 'hi ??? Matlab Componentwise Exponentiation Thanks alot. –user128806 Apr 29 '14 at 19:40 add a comment| up vote 1 down vote Strange error, because in my MATLAB it is showing: Error using ^ Inputs must be In order to avoid the error, you must format 'cube.volume' as an array upon assignment. >> volumes = {cube.volume} You can also write in a separate assignment for each cube but https://www.mathworks.com/matlabcentral/answers/10307-error-using-mpower-at-least-one-operand-must-be-scalar-in-mod-operation Some things are rather obvious but take some practice in avoiding: You cannot try to access part of an array that does not exist yet. >> A = [1,3]; >> A(3)

Error using ==> eq Matrix dimensions must agree. >> strcmp('AA', 'AaA') ans = 0 >> strcmp('A', 'a') ans = 0 >> strcmp('AA', 'AA') ans = 1 Note that MATLAB strings are Error Using Mpower Inputs Must Be A Scalar And A Square Matrix MATLAB tries to tell you where the missing parenthesis should go but it isn't always right. Survey tool to ask questions on individual pages - what are they called? Detecting or planning an error[edit] No matter how accurate the programming is, errors might happen.

## Matlab Componentwise Exponentiation

See Debugging M Files for details on how to use the debugger. http://matlab.exponenta.ru/forum/obshhie-voprosy-f1/grafik-t9024.html Array Indexing errors[edit] Array indexing is a key component of MATLAB. Error Using Mpower In Matlab In order to multiply element by element use: a.*a. Matlab Error Using Mtimes This error is simple enough, it means you're missing a parenthesis, or you have too many.

Search To add search criteria to your watch list, search for the desired term in the search box. http://smartphpstatistics.com/error-using/error-using-linsolve-matrix-dimensions-must-agree.html A very common error is illustrated in the following: >> A(1 ??? Error using **==> mpower Matrix must** be square. It will tell you that 'at least one END is missing' and try to tell you where the loop or conditional statement starts. Matlab Plot

Join Now For immediate help use Live now! try% do something; catch me me.getReport; then a breakpoint and even disp(me.getReport) will help in this situation. You can't do matrix multiplication of two 100 x 1 vectors and that is what "*" without the dot calls for. Check This Out Error in ==> triscastdmeshgrid10012013b at 6 F=1.10471*X^2*A+0.04811*B*(14.0+A); Subject: Error using ==> mpower........

This problem can be alleviated if you do not split the root, which is highly recommended. A more useful expression would be something like >> A(A==3) Attempting to use non-standard MATLAB syntax in your indexing will often result in the error: >> A(2::, 2) ??? How do I **help minimize interruptions during group meetings** as a student?

## Thank you.

One last question is what is the best parameters to plot a 4-variable functions like mine - F=1.10471*X.^2*A+0.04811*B*(14 + A); thanks Feed for this Thread Add to My Watch List What Join the community of 500,000 technology professionals and ask your questions. This way you can easily keep track of topics that you're interested in. Logical fallacy: X is bad, Y is worse, thus X is not bad How to make files protected?

Let us first deal with indexing within struct arrays. Another possibility is that you named your m-file with unusual letters for computers. To compare two strings you must use the strcmp function: >> 'AA' == 'AaA' ??? this contact form You'll notice that if you tell MATLAB to display cube.volume, it will display both values, but reassign the variable ans each time, because it is treated as two separate variables.

Learn MATLAB today! What is happening here? This is usually because you meant to use componentwise exponentiation and forgot the dot. Opportunities for recent engineering grads.

Take a look at the following code: >> A = [1,2,3;4,5,6;7,8,9]; >> A(2,:) = [3,5]; ??? I really want to plot this function F with at least the 3 variables while I keep the other fourth variable constant. Also note that if 0 were a logical 0 (false) then the statement A(0) would not be an indexing error but a logical subscripting expression. Other errors[edit] There are numerous types of errors that do not generate errors from the MATLAB compiler, which have to do with calling the wrong function, using the wrong operation, using

MATLAB may be able to tell you which index is not real or logical depending on context. >> y=3*A(-1) Attempted to access A(-1); index must be a positive integer or logical. If you were to write X*X you would also get an error message. Reload the page to see its updated state.