import numpy as np
import matplotlib.pyplot as plt

# ── Parameters ─────────────────────────────────────────────────────────────
seed     = 2905
n_points = 165

# ── Data ────────────────────────────────────────────────────────────────────
x = np.linspace(0.0, 2.0 * np.pi, n_points)

y0 = 0.607619 * np.sin(1.667818 * x + 6.143726)
y1 = 1.205378 * np.sin(1.973711 * x + 0.172039)
y2 = 1.652390 * np.sin(2.122295 * x + 0.591268)

# ── Plot ────────────────────────────────────────────────────────────────────
fig, ax = plt.subplots(figsize=(7, 4))
ax.plot(x, y0, color="tab:blue", label="A=0.61, f=1.67, φ=6.14")
ax.plot(x, y1, color="tab:orange", label="A=1.21, f=1.97, φ=0.17")
ax.plot(x, y2, color="tab:green", label="A=1.65, f=2.12, φ=0.59")
ax.set_xlabel("x")
ax.set_ylabel("y")
ax.set_title("Sinusoidal Line Plot  (3 curve(s))")
ax.legend(fontsize=8)
ax.grid(True, alpha=0.3)
fig.tight_layout()
plt.show()