Make some changes

src/plot_general_alg_error.py

@@ -0,0 +1,25 @@
+import matplotlib.pyplot as plt
+
+def main():
+    _, axs = plt.subplots(2)
+    for i in range(6):
+        x = []
+        abs_err = []
+        rel_err = []
+        with open(f"output/error/out_{10**(i+1)}.txt", "r") as f:
+            lines = f.readlines()
+            for line in lines:
+                x_i, abs_err_i, rel_err_i = line.strip().split(",")
+                x.append(float(x_i))
+                abs_err.append(float(abs_err_i))
+                rel_err.append(float(rel_err_i))
+
+        axs[0].plot(x, abs_err, label=f"abs_err {10**(i+1)} steps")
+        axs[1].plot(x, rel_err, label=f"rel_err {10**(i+1)} steps")
+
+    axs[0].legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)
+    axs[1].legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)
+    plt.savefig("../latex/images/problem8.pdf", bbox_inches="tight")
+
+if __name__ == "__main__":
+    main()