modify the code to plot the graphs for the attached problem.

Here is my code. Please if you do not know how to do this please give it to someone else. Ive wasted three expert questions now. Here is my code I have:

$\%$ This script plots the shear and bending moment diagrams

$\%$ for Example Problem $7\mathrm{.}4.$ It uses trapezoidal integration

$\%$ so values may be off a little. It could be modified

$\%$ for any number of point loads and a distributed load function.

$\%$ Note: Calculate support reactions before running this script

clear;

$\%$ Givens

$\%$ beam length range

xmin $=0$;

xmax $=32$;

X $=$ linspace$($xmin$,$xmax,$201)$; $\%$ Set number of points here

dx $=$ X$(2)-$X$(1)$; $\%$ Distance between x points is constant

$\%$ Point loads including support reactions

$\%$ x is first column and force is second column

$\%$ negative force is downward directed

$\%$ Must be in increasing x order

PointLoads $=[0,18$; $6,-20$; $14,-12$; $24,26]$;

$\%$ A distributed load

$\%$ domain of application of the distributed load

wxmin $=24$;

wxmax $=32$;

$\%$ Load is a function of x$,$ negative is downward

$\%$ This returns an array if x is an array

$\%$ The function is in last parenthesis

wLoad $=$ @$($x$)($x$>=$wxmin & x$=$wxmin & X $1)$

shear$($i$)=$ shear$($i$-1)$;

if$($ wpts$($i$))$

shear$($i$)=$ shear$($i$)...$

$+($wLoad$($X$($i$-1))+$wLoad$($X$($i$)))*$dx$/2$;

end

end

$\%$ Add Point Loads when the new x passes a load point

if$($ ip length$($plx$)$ && xx $>=$ PointLoads$($ip$,1))$

shear$($i$)=$ PointLoads$($ip$,2)+$ shear$($i$)$;

ip$=$ip$+1$; $\%$ Shift to the next Point Load

end

i$=$i$+1$; $\%$ Shift to the next shear index

end

plot$($X$,$shear$)$

area$($X$,$shear,'FaceColor',$[\mathrm{.}8,\mathrm{.}9,1\mathrm{.}0])$; $\%$ Draw the shear plot

$\%******$ Add Titles, Labels Etc. Here $***************$

xlabel$(\text{'}$Distance X $($m$)$ from Left side $\text{'})$

ylabel$(\text{'}$ Force $($N$)\text{'})$

title$(\text{'}$Diagram of Shear force $\text{'},$ 'color', $\text{'}$b$\text{'})$

xlim$($xbound$)$; $\%$ Set plot domain to be the same as other plots

hold off;

$\%$ Work on the bending moment plot at the bottom

subplot$(3,1,3)$;hold on;

$\%$ Draw a baseline at y$=0$

line$([$xmin$,$xmax$],[0,0],$'Color',$[\mathrm{.}5,\mathrm{.}5,\mathrm{.}5],$'LineWidth',$2)$;

bending $=$ zeros$($length$($X$),1)$; $\%$ Bending Moment Array

$\%$ Trapezoidal Integration of Shear

i$=1$;

for xx $=$ X

if$($ i $>1)$

bending$($i$)=$ bending$($i$-1)...$

$+($shear$($i$)+$ shear$($i$-1))*$dx$/2$;

end

i$=$i$+1$;

end

$\%$ Draw bending moment plot

plot$($X$,$bending$)$

area$($X$,$bending,'FaceColor',$[\mathrm{.}8,\mathrm{.}9,1\mathrm{.}0])$;

$\%******$ Add Titles, Labels Etc. Here $***************$

xlabel$(\text{'}$Distance $($m$)$ from Left side $\text{'})$

ylabel$(\text{'}$ Moment $($N$-$m$)\text{'})$

title$(\text{'}$Diagram of Bending Moment $\text{'},$ 'color', $\text{'}$b$\text{'})$

xlim$($xbound$)$; $\%$ Set consistent x axis limits

saveas$($gcf$,$'ShearAndBending.png$\text{'})$; $\%$ Save as an image