3 files changed, 178 insertions, 0 deletions
diff --git a/ee1301/wk3/hw3_directory/strap012_HW3A.cpp b/ee1301/wk3/hw3_directory/strap012_HW3A.cpp
new file mode 100644
index 0000000..42aae10
--- /dev/null
+++ b/ee1301/wk3/hw3_directory/strap012_HW3A.cpp
@@ -0,0 +1,62 @@
+/*
+27 Feb 2019
+Matthew Strapp
+5449340
+EE1301
+Spring 2019
+Homework 3A
+One-armed Bandit Simulator
+*/
+
+#include <iostream>
+#include <stdlib.h>
+#include <cmath>
+#include <iomanip>
+
+int spin_the_wheels(int d, int w);
+
+int main () {
+  srand(time(NULL));
+  int w, d, winCount, winTest;
+  for (w=3; w<=6; w++) {
+    winCount=0;
+    for (d=9; d<=27; d++) {
+      winCount=0;
+      for (long n=1000000; n>0; n--) { //The simulation is always done 1,000,000 times
+        winTest = spin_the_wheels(d, w);
+        winCount+=winTest;
+      }
+      if (w==6) {
+        std::cout << std::scientific;
+      }
+      std::cout << "w=" << w << ", d=" << d
+           << ": Simulated probability = m/n = " << (winCount / 1000000.0) * 100.0 << "%. "
+           << "Theoretical probability = " << (d / (pow(d, w))) * 100 << "%." << std::endl;
+      d+=2;
+    }
+  }
+}
+
+// Function: spin_the_wheels
+//  ---------------------------
+// Simulates the one-armed bandit from the previous HW
+// d: the number of options on the spinner
+// w: the number of spinners
+// returns: Either 1 for win or 0 for loss
+
+int spin_the_wheels(int d, int w) {
+  int spinOG=0, spinNew=0, win=0;
+  spinOG = ( (rand() % d) + 1); //Original spin is always the same
+  w-=1; //The first wheel was spun as spinOG
+  for (int i=0; i<w; i++) {
+    spinNew = ( (rand() % d) + 1);
+    if (spinOG==spinNew) {
+      win++;
+    }
+  }
+  if (win==w) { //The only win condition is if every wheel matches
+    return 1;
+  } else {
+    return 0;
+  }
+}
+\ No newline at end of file
diff --git a/ee1301/wk3/hw3_directory/strap012_HW3B.cpp b/ee1301/wk3/hw3_directory/strap012_HW3B.cpp
new file mode 100644
index 0000000..16785bd
--- /dev/null
+++ b/ee1301/wk3/hw3_directory/strap012_HW3B.cpp
@@ -0,0 +1,65 @@
+/*
+27 Feb 2019
+Matthew Strapp
+5449340
+EE1301
+Spring 2019
+Homework 3B
+Character Detection
+*/
+
+#include <iostream>
+#include <stdlib.h>
+#include <cmath>
+#include <iomanip>
+
+int charTest (char character);
+
+int main () {
+using namespace std;
+    int test;
+    char character;
+    bool isAlphaNumeric=true;
+    while (isAlphaNumeric) {
+      cout << "Enter a single digit or an alphabetic character: ";
+      cin >> character;
+      cout << "You entered " << character << ", ";
+      test = charTest(character);
+      if (test==0) {
+        isAlphaNumeric=false;
+        cout << "which is not a letter or a number.";
+      }
+      if (test==1) {
+        cout << "which is a number.";
+      }
+      if (test==2) {
+        cout << "which is a lower case letter.";
+      }
+      if (test==3) {
+        cout << "which is an upper case letter.";
+      }
+      cout << endl;
+    }
+}
+
+// Function: charTest
+//  ---------------------------
+// Tests to see what kind of character was inputted
+// input: character from prompt in main
+// returns: 1 if number, 2 if lower case, 3 if upper case, 0 if not any of the previous
+
+int charTest (char character) {
+  if (character >= '0' && character <= '9') {
+      return 1;
+    } else {
+        if (character>='a' && character<='z') {
+            return 2;
+        } else {
+            if (character>= 'A' && character<='Z') {
+                return 3;
+            } else {
+                  return 0;
+            }
+        }
+    }
+}
+\ No newline at end of file
diff --git a/ee1301/wk3/hw3_directory/strap012_HW3C.cpp b/ee1301/wk3/hw3_directory/strap012_HW3C.cpp
new file mode 100644
index 0000000..6886106
--- /dev/null
+++ b/ee1301/wk3/hw3_directory/strap012_HW3C.cpp
@@ -0,0 +1,51 @@
+/*
+27 Feb 2019
+Matthew Strapp
+5449340
+EE1301
+Spring 2019
+Homework 3C
+Character Detection
+*/
+
+#include <iostream>
+#include <stdlib.h>
+#include <cmath>
+#include <iomanip>
+using namespace std;
+
+void swapCase(char s);
+
+int main() {
+    char character;
+    do { //This loops until '@' is entered
+        cout << "Please enter a character that is an ASCII letter in the range [A-Za-z]: ";
+        cin >> character;
+        if (character!='@') {
+          swapCase(character);
+        }
+    } while (character!='@');
+}
+
+// Function: swapCase
+//  ---------------------------
+// Swaps the case of a latin ASCII character and prints an error if not one
+// s: the character inputted
+// Outputs: Nothing, the function just outputs the response
+
+void swapCase(char s) {
+    char New;
+    cout << "You entered " << s;
+    if ( (s >= 'a' && s <= 'z') || (s >= 'A' && s <= 'Z') ) {
+        cout << ", I respond with ";
+        if (s >= 'A' && s <= 'Z') {
+          New = s + 32; //32 is the difference between capital and lowercase ASCII characters
+        } else {
+            New= s - 32;
+        }
+        cout << New;
+    } else {
+            cout << ", which is not a valid character.";
+        }
+    cout << endl;
+}
+\ No newline at end of file