exp 1-6: init

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

2.c

@@ -0,0 +1,23 @@
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#define EPSILON 0.0000001
+#define f(x) ((352 * x * x * x) - (64 * x * x) + (198 * x) - 36)
+double bisection(double a, double b) {
+  double x;
+  if (f(a) * f(b) > 0) {
+    printf("The values of function at the respective initial guesses must have "
+           "opposite signs");
+    exit(1);
+  }
+  x = (a + b) / 2;
+  if (f(x) == 0 || fabs(b - a) < EPSILON)
+    return x;
+  if (f(x) > 0)
+    return bisection(x, b);
+  return bisection(a, x);
+}
+int main() {
+  printf("Root for f(x) = 352x^3 - 64x^2 + 198x - 36 is %lf",
+         bisection(1.6, -4));
+}