added beginner c sources

diff --git a/calc.c b/calc.c
new file mode 100644 (file)
index 0000000..a4e99aa
--- /dev/null
+++ b/calc.c
@@ -0,0 +1,130 @@
+#include <stdio.h>
+
+char input[50];       /* for operator and number */
+char choice[3];       /* for the choice i give you, hahahaha */
+char operator;        /* tells me how to calculate */
+char quit;            /* to quit the averager */
+
+float result;         /* the result of the calculations */
+int yachoi;           /* for ya choice that i gave you, hahahaha */
+float value;          /* the value i have to calculate with */
+int counter;          /* counting the amount of numbers to average */
+
+int main()
+{
+  printf ("Welcome to Frank's Calculator.\n");
+  printf ("\n");
+
+  while(1)    /* Loop 1  -- ya choice ! */
+  {
+
+   printf ("What do you want to do:\n");
+   printf ("1=Calculate\n");
+   printf ("2=Average an amount of numbers\n");
+   printf ("3=Quit Program\n");
+   printf ("\n");
+   printf ("Your choice: ");
+
+   fgets(choice, sizeof(choice), stdin);
+   sscanf(choice, "%d", &yachoi);
+   
+   if (yachoi == 3)
+     {
+      printf ("Thanks for using the Frankulator -- see ya!\n");
+      break;
+     }  
+
+    switch (yachoi)
+     {
+
+     case 1:
+
+       result = 0;  /* I don't want the computer to get a number by chance */
+
+       printf ("The CaLcUlAtOr --  press 'q` to go to main menu!\n");
+       printf ("\n");
+       while(1)        /* Loop 1.1  -- the calculator */
+        {
+          printf ("\n");
+          printf ("Result = %f !\n", result);
+          printf ("\n");
+          printf ("Enter operator and number: ");
+
+          fgets(input, sizeof(input), stdin);
+          sscanf(input, "%c %f", &operator, &value);
+
+          if (operator == 'q')
+           {
+             printf ("See ya dude!\n");
+             break;
+            }
+
+           switch (operator)
+            {
+           case '+':
+                result += value;
+                break;
+            case '-':
+                result -= value;
+                break;
+           case '*':
+                result *= value;
+                break;
+            case '/':
+                if (value == 0)
+               {
+                  printf("Illegal you stoopid! ...try again\n");
+                  break;
+               }  
+                result /= value;
+                break;
+            default:
+                printf ("Sorry, don't know operator...try another!\n");
+                break;
+            }
+        }
+      break;
+        
+     case 2:
+
+       printf ("Welcome to the aVeRaGeR  -- press 'q` for main menu!\n");
+       printf ("\n");
+
+       result = 0;
+       counter = 1;
+
+       while(1)
+        {
+        printf ("Enter number %d : ",counter);
+        
+        fgets(input, sizeof(input), stdin);
+        sscanf(input, "%c", &operator);
+         
+        if (operator == 'q')
+         {
+           if (counter == 1)
+            {
+              printf ("Stoopido...  try anothertime, he!\n");
+              break;
+            }
+           printf ("The average is : %f !\n",result/(counter-1));
+           break;
+         }
+        
+        sscanf(input, "%f", &value);
+        result += value;
+        ++counter;
+       } 
+      break;
+
+     default:
+
+       printf ("Come on try again...stoopid!\n");
+       printf ("\n");
+       break;
+     }   
+  }
+return (0);
+}
+
+

diff --git a/length.c b/length.c
new file mode 100644 (file)
index 0000000..7abd55a
--- /dev/null
+++ b/length.c
@@ -0,0 +1,37 @@
+/*  Type something ... and I tell you it's length!   */
+#include <string.h>
+#include <stdio.h>
+
+char first[100];     /* string for firstname  */
+char last[100];      /* etc. */
+char full[200];      /* string for the full name */
+char line[4];        /* string for age  */
+int age;             /* variable for Age  */
+
+int main()
+{
+  printf(" -----------------------------------------------------------\n");
+  printf("Yoh dude, ready to let me count...:\n");
+
+  printf("Enter first name: ");
+  fgets(first, sizeof(first), stdin);
+  first[strlen(first) - 1] = '\0';
+
+  printf("now the last name : ");
+  fgets(last, sizeof(last), stdin);
+  last[strlen(last) - 1] = '\0';
+
+  printf("...and your age: ");
+  fgets(line, sizeof(line), stdin);
+  sscanf(line ,"%d" ,&age);
+
+    strcpy(full, first);
+    strcat(full, " ");
+    strcat(full, last);
+
+ printf("%s got %d cHaRaCtErS man!\n", full, strlen(first) + strlen(last) - 2);        /* -- \0 must not be counted -- */
+ printf("...and you are %d years old!\n",age );
+  return(0);
+}
+
+

diff --git a/pie_new.c b/pie_new.c
new file mode 100644 (file)
index 0000000..860c816
--- /dev/null
+++ b/pie_new.c
@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+int counter1;
+// float counter3;
+float counter2;
+int steps;
+int hits;
+float x;
+float x2;
+float y;
+float y2;
+float pie;
+float pie2;
+char stepschar[100];
+
+int main()
+{
+
+   printf("\n");
+   printf("\n");
+   printf("Berechne Pie...\n");
+   printf("\n");
+   printf("Genauigkeit - [steps] ? : ");
+
+   fgets(stepschar, sizeof(stepschar), stdin);
+   sscanf(stepschar, "%d", &steps);
+
+   counter2 = 0;
+   hits = 0;
+   pie2 = 1;
+
+      for (counter1 = 1; counter1 <= steps; ++counter1)
+       {
+         x = rand( ); 
+         y = rand( );
+
+         x2 = x / RAND_MAX; 
+         y2 = y / RAND_MAX;
+        
+         printf("%7d. Vektor: ( %f , %f )\n", counter1, x2, y2);
+ 
+         if( ( x2 * x2 + y2 * y2) <= 1 )
+        ++hits;
+
+        // counter3 = counter1;
+
+        pie2 = pie2 * ((float)(( 2 * counter1 ) * ( 2 * counter1 )) / (float)((( 2 * counter1 ) * ( 2 * counter1 )) - 1 ));
+
+         counter2 = counter2 + x2 + y2;
+       }
+
+      pie = (4.0 * hits) / steps;
+      pie2 = 2 * pie2;
+
+   printf("\n");
+   printf("\tPie  :\t %1.8f\n", pie);
+   printf("\tProbe:\t %1.8f  (nah an 0.5 ?...)\n\n", counter2 / ( 2.0 * steps ));
+   printf("\tAus Rekursion:\t %1.8f\n", pie2);
+
+return (0);
+}

diff --git a/term.c b/term.c
new file mode 100644 (file)
index 0000000..7618f38
--- /dev/null
+++ b/term.c
@@ -0,0 +1,36 @@
+/* Term */
+
+#include <stdio.h>
+
+float term;      /* Variable für den Term */
+float fak;       /* Vielfachenfaktor */
+int z;        /* Zähler des Terms */ 
+int ne;        /* Nenner des Terms */
+char input[10];  /* Input des Users */
+
+int main()
+{
+printf("\n");
+printf("Vielfaches eines Terms .. check out ;-) [Term aus ganzen Zahlen] \n");
+printf("\n");
+
+ printf("Faktor: ");
+ fgets(input, sizeof(input), stdin);
+ sscanf(input, "%f", &fak);
+
+printf("\n");
+
+ printf("Zähler des Terms: ");
+ fgets(input, sizeof(input), stdin);
+ sscanf(input, "%d", &z);
+ 
+ printf("Nenner des Terms: ");
+ fgets(input, sizeof(input), stdin);
+ sscanf(input, "%d", &ne);
+
+term = fak * z / ne;
+printf("Der %f - fache Wert des Terms  %d / %d ist %f\n", fak, z, ne , term);
+return (0);
+}
+
+