Added 2 question asked in Exam

Inverse.sce

@@ -0,0 +1,37 @@
+//AU2040241 Priyanshu Pathak
+clear;clc;
+x = [1 2 3 4 5 6];
+kx = 3;
+element = x(kx);
+N = length(x);
+y = x;
+
+for i=1:N
+    y(N-i+1) = x(i);
+end
+for i=1:N
+    if y(i)==element then
+        ky = i;
+    end,
+end
+printf("x(n): ");
+disp(x);
+printf("y(n): ");
+disp(y);
+printf("ky: ");
+disp(ky);
+//Output:
+
+//x(n): 
+//   1.   2.   3.   4.   5.   6.
+//y(n): 
+//   6.   5.   4.   3.   2.   1.
+//ky: 
+//   4.
+
+//x(n): 
+//   1.   2.   3.   4.   5.   6.
+//y(n): 
+//   6.   5.   4.   3.   2.   1.
+//ky: 
+//   4.

Music-with-upsamling.sce

@@ -0,0 +1,35 @@
+// AU2040241 Priyanshu Pathak
+clear; clc;
+function [x, L]=Eq(x, L)
+    N = length(x);
+    y = zeros(1:L*N);
+    y([1:L:length(y)])= x;
+endfunction
+RN = 241;
+fs = (RN/3) + 200; // fs = 280.333 hz
+d = 0.4;
+t = 0:1/11025:d;
+t2 = 0:1/22050:d;
+En = sin(%pi*t/d);
+En2 = sin(%pi*t2/d);
+fr = fs*2^(2/12); 
+
+fg = fs*2^(4/12); 
+
+Sa = En.*sin(2*%pi*fs*t);
+Sa2 = En2.*sin(2*%pi*fs*t2);
+Re = En.*sin(2*%pi*fr*t); 
+Re2 = En2.*sin(2*%pi*fr*t2); 
+Ga = En.*sin(2*%pi*fg*t); 
+Ga2 = En2.*sin(2*%pi*fg*t2); 
+x = [Sa Re Ga Re Sa];
+z = [Sa2 Re2 Ga2 Re2 Sa2];
+L = 2; //Upsampling factor
+[x,L] = Eq(x,L);
+sound(x);
+analyze(x);
+wavwrite(x, fs, 'first_wave.wav');
+[x,L] = Eq(z,L);
+sound(z);
+analyze(z);
+wavwrite(z, fs, 'second_wave.wav');