Some useful Matlab Commands :

To program commands such as if $x<mn\; id="EditorElement\_1411095">0</mn>$ then $y=x^2$ use the following code :

if $x<mn\; id="EditorElement\_1411018">0</mn>$

$y=x^2$;

end

To program commands such that if $x<mn\; id="EditorElement\_1410936">0</mn>$ then $y=x^2$ else $y=cos(x)$ use

the following code :

if $x<mn\; id="EditorElement\_1410824">0</mn>$

$y=x^2$;

else

$y=cos(x)$;

end

To program commands such that if $x<mn\; id="EditorElement\_1410701">0</mn>$ then STOP FOR LOOP use the

following code :

if $x<mn\; id="EditorElement\_1410638">0</mn>$

break;

end

Note that when this is used in a for loop the break will simply goto the end of

the for loop and continue executing the remaining command after the end of the

for loop.

To print output on the command window saying 'Here is the output 'use

the following code :

output $=[$ 'Here is the output $\text{'}]$;

$\%$ this will store the string of alphabets in an array called output

output

$\%$ typing output with no semi colon after it will simply display the contents on

$\%$the command window

Matlab command for $e^x.$

exp$(x)$;

$\%$ Note that if $x$ is an array then exp$(x)$ will be an array with each element

$\%$ being the exponential of the corresponding element of $x.$

Matlab command for $|x|$ :

$\frac{?}{abs}(x)$;

$\%$ Note that if $x$ is an array then abs$($x$)$ will be an array with each element

$\%$ being the absolute value of the corresponding element of $x.$

Write a matlab program to locate a solution of the equation $6(e^x-x)=$

$7+3x^2+2x^3$ between $-1$ and $1$ using the bisection method.