$ $./$scaling$.$sh

$./$scaling$.$sh: line $2$: $$\text{'}\backslash$r$\text{'}$: command not found

$./$scaling$.$sh: line $7$: $$\text{'}\backslash$r$\text{'}$: command not found

$./$scaling$.$sh: line $8$: $$\text{'}$bc$\backslash$r$\text{'}$: command not found

$./$scaling$.$sh: line $9$: $$\text{'}$bc$\backslash$r$\text{'}$: command not found

$./$scaling$.$sh: line $10$: $$\text{'}$bc$\backslash$r$\text{'}$: command not found

$./$scaling$.$sh: line $11$: $$\text{'}$bc$\backslash$r$\text{'}$: command not found

$($standard$\_$in$)1$: illegal character: $^$M

$($standard$\_$in$)1$: illegal character: $^$M

$($standard$\_$in$)1$: illegal character: $^$M

$($standard$\_$in$)1$: illegal character: $^$M