clear

clc;

$\%$ calculate the slope and y intercept

$p=$ polyfit $(F,x,1)$;

scatter $($x$,$ F$,\text{'}$ro$\text{'},$ 'Linewidth $\text{'},1\mathrm{.}5)$

hold on

plot $($polyval $($p$,$ F$),$ F$,"$b$--",$ 'LineWidth', $1)$

xlabel$(\text{'}$x $[$m$]\text{'})$

ylabel$(\text{'}$F $[$N$]\text{'})$

grid on

yticks $(0$:$0\mathrm{.}5$:$2\mathrm{.}5)$

title$(\text{'}$Spring Constant'$)$

$k=\frac{F}{x}$;

fprintf$(\text{'}$Spring constant is $k=\%\mathrm{.}4F-\frac{N}{m}\frac{?}{?}$

$\text{'})$;

Spring constant is $k=$