Plot the amount of particles left in Penning trap

src/plot_particles_left.py

@@ -0,0 +1,33 @@
+import matplotlib.pyplot as plt
+
+def main():
+    files = [
+        "output/time_dependent_potential/f_0.100000.txt",
+        "output/time_dependent_potential/f_0.400000.txt",
+        "output/time_dependent_potential/f_0.700000.txt",
+    ]
+    vals = [
+        .1,
+        .4,
+        .7
+    ]
+    for i in range(3):
+        with open(files[i]) as f:
+            lines = f.readlines()
+            x = []
+            y = []
+            for line in lines:
+                a,b = line.strip().split(",")
+                x.append(float(a))
+                y.append(float(b))
+            plt.plot(x,y,label=f"amplitude: {vals[i]}")
+
+    plt.xlabel(r"$\omega_V$")
+    plt.ylabel(r"Fraction of particles left")
+    plt.title(r"The fraction of particles left in the Penning trap "
+              "after 500 microseconds for different amplitudes and frequencies")
+    plt.legend()
+    plt.show()
+
+if __name__ == "__main__":
+    main()