Error in variables statements, MATLAB Programming

Error in variables statements:

Error: The expression in the left of equals sign is not a valid target for an assignment.

>> 

By placing a semicolon at the end of the statement suppress the output. For illustration,

>> res = 9 - 2;

>> 

This would assign the result of the expression on the right side, the value 7, to the variable res; it merely doesn't show that result. Rather than, the other prompt appears instantly. Though, at this point in the Workspace Window the variables mynum and res can be seen.

The spaces in an expression or statement do not influence the result, but make it easier to read. The below statement that has no spaces would accomplish exactly the similar thing as the earlier statement:

>> res = 9-2;

The MATLAB uses a default variable named 'ans' if an expression is typed at the prompt and it is not assigned to a variable. For illustration, the result of the expression 6 + 3 is stored in the variable ans:

>> 6 + 3

ans =

9

This default variable is reused any time merely an expression is typed at the prompt. A short cut for retyping a command is to press the up-arrow ↑, which will go back to the formerly typed command. For illustration, if you decided to assign the result of the expression 6+3 to the variable res rather than of using the default ans, you can press the up-arrow and then the left-arrow to change the command rather than retyping the entire statement:

>> res = 6 + 3

res = 9

 

Posted Date: 10/18/2012 3:25:09 AM | Location : United States







Related Discussions:- Error in variables statements, Assignment Help, Ask Question on Error in variables statements, Get Answer, Expert's Help, Error in variables statements Discussions

Write discussion on Error in variables statements
Your posts are moderated
Related Questions
Plot way forms for the following modulation schemes using Mathlab: a)      2 ASK                     b)  BFSK                        c) BPSK 4 ASK

Common form of a function definition: The common form of a function definition for a function which computes and returns one value looks like this: For illustration, t

The Format Function and ellipsis: The default in MATLAB is to show numbers which have decimal places with four decimal places. The format command can be used to identify the o

Micro-mouse is an engineering design competition created by IEEE in the late 1970s. Small robotic "mice" solve a 16x16 cell maze. The mice are completely autonomous and must find t

Matlab Command Reference 1. Getting Help: The help command is used to find the functions and its syntax. Similarly, lookfor is used to find the functions or topics. For examp

Illustration of Output statements: For illustration, >> disp('Hello') Hello >> disp(4^3)   64 The formatted output can be printed to the screen by using the fpr

Illustrations of if statement: illustrations of running this script: >> sqrtifexamp Please enter a number: -4.2 The sqrt of 4.2 is 2.0 >> sqrtifexamp Please ent

To change a variable: To change a variable, the other assignment statement can be used that assigns the value of a different expression to it. Consider, for illustration, the

String Manipulation: The string in MATLAB software consists of any number of characters and is contained in the single quotes. Actually, strings are considered as vectors in w

The game of Simpli ed Poker is a simple game by today''s standards. You start o with a standard deck of cards, shue the cards, and then give each player 3 cards. Each card has a