update

5 files changed, 226 insertions, 0 deletions

diff --git a/src/c/lookup b/src/c/lookup
new file mode 100755
index 0000000..6a6368d
--- /dev/null
+++ b/src/c/lookup
Binary files differdiff --git a/src/c/lookup.c b/src/c/lookup.c
new file mode 100644
index 0000000..01b5508
--- /dev/null
+++ b/src/c/lookup.c
@@ -0,0 +1,74 @@
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+
+// Define some variables
+int sigma = 200;
+float f_0 = 0.1;
+float R_s = 1e4;
+
+// Define some constants
+float pi = M_PI;
+float e = M_E;
+float G = 4.302e-3;
+
+// Define the directory where the data shall be stored
+
+// Prototype
+float rho(float r);
+float phi(float x);
+
+int main(int argc, char *argv[] ){
+  if( argc == 2 ) {
+    printf("Generating %s Values...\n", argv[1]);
+
+    FILE * fp = fopen("testFile.csv", "w+");
+    if(fp == NULL){
+      printf("Error opening the file!\n");
+      exit(1);
+    }
+
+    int x = atoi(argv[1]);
+
+    for(int i = 0; i < x; i++){
+      fprintf(fp, "%d, %f\n", i, phi(i));
+    }
+
+    // for(int i = 0; i < 1e7; i = i + 1e4){
+    //   printf("%s, %f\n", i, phi(i));
+    // }
+
+    fclose(fp);
+
+  }
+  else if( argc > 2 ) {
+    printf("Too many arguments supplied.\n");
+    return 0;
+  }
+  else {
+    printf("One argument expected.\n");
+    return 0;
+  }
+
+  return 0;
+}
+
+// Define rho function
+float rho(float r){
+  float a = (1) / ( sqrt(2 * pi) * sigma);
+  float b = exp( - (phi(r) / pow(sigma, 2) ));
+  return a;
+}
+
+// Define phi function
+float phi(float x){
+  if(x == 0) {
+    float a = -4 * pi * f_0 * G * pow(R_s, 2);
+    return(a);
+  }
+  else {
+    float a = - (4 * pi * G * f_0 * pow(R_s, 3) / x);
+    float b = log(1 + (x / R_s) );
+    return(a * b);
+  }
+}
diff --git a/src/c/read b/src/c/read
new file mode 100755
index 0000000..97751d7
--- /dev/null
+++ b/src/c/read
Binary files differdiff --git a/src/c/read.c b/src/c/read.c
new file mode 100644
index 0000000..109c603
--- /dev/null
+++ b/src/c/read.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+
+// Define some constants
+int range = 100;
+
+// Prototype pythagoras function
+float pythagoras(int x, int y, int z);
+
+int main(int argc, char *argv[] ){
+  // Seed random
+  srand(time(NULL));
+
+  // Define the number of stars that should be generated using command line
+  // arguments
+  long num_of_stars = atoi(argv[1]);
+
+  // define an array to store the coordinates of the stars in
+  int star_arr[num_of_stars][3];
+
+  // generate the random coordinates
+  for(int i = 0; i < num_of_stars; i++){
+    star_arr[i][0] = rand() % range + 1;
+    star_arr[i][1] = rand() % range + 1;
+    star_arr[i][2] = rand() % range + 1;
+  }
+
+  // print the content of the array star_arr
+  for(int i = 0; i < num_of_stars; i++){
+    printf("%d, %d, %d\n", star_arr[i][0], star_arr[i][1], star_arr[i][2]);
+    printf("%f\n\n", pythagoras(star_arr[i][0], star_arr[i][1], star_arr[i][2]));
+
+  }
+
+  // Test if the Star should be generated or not
+
+    // If the star should be generated, write it's coordinates to a file
+    // Else do nothing
+
+  return 0;
+}
+
+float pythagoras(int x, int y, int z){
+  float a = pow(x, 2);
+  float b = pow(y, 2);
+  float c = pow(z, 2);
+  float d = a + b + c;
+  float e = sqrt(d);
+  return e;
+}
diff --git a/src/c/testFile.csv b/src/c/testFile.csv
new file mode 100644
index 0000000..3568a06
--- /dev/null
+++ b/src/c/testFile.csv
@@ -0,0 +1,100 @@
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+1, -540668.000000
+2, -540640.937500
+3, -540613.937500
+4, -540425.875000
+5, -540431.062500
+6, -540425.500000
+7, -540413.812500
+8, -540398.375000
+9, -540380.312500
+10, -540360.375000
+11, -540280.750000
+12, -540263.562500
+13, -540244.812500
+14, -540224.875000
+15, -540204.062500
+16, -540182.437500
+17, -540160.187500
+18, -540101.687500
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