(Solved): please i need only part 4 1) The circuit shown below is an xor gate implemented with four NAND gates ...

1) The circuit shown below is an xor gate implemented with four NAND gates. Write a MATLAB myxor function that uses only not() and and() functions to calculate the element-by-element xor of two arrays. 2) Write a MATLAB function called Ctype() that decides whether a capacitor is larger than or equal to $1\mu \mathrm{F}$. If so, the function prints out " $\mathrm{C}$ is probably electrolytic". Otherwise, the function prints out " $\mathrm{C}$ is probably non-polarized". An example of how the function would be used is shown below. $>$ Ctype(2e-6) $\mathrm{C}$ is probably electrolytic 3) Write a MATLAB Script file to ask the user to choose the color at which he wants to plot $\sin (x)$ from $-2\pi$ to $2\pi$ [ use color red, yellow, green, use switch Matlab control statement ] 4) Plot $f(x)=\left\{\begin{array}{cc}0& x<0\\ 1& 0\le x\le 2\\ -0.5x+2& 2<x\le 4\\ 0& x>4\end{array}\right\}$ from $[-5,5]$ use matlab if control