phase_combined_separate.jpg
The user wants a detailed description of an image containing three stacked line graphs.
I need to describe:
1.  **Overall Layout:** Three horizontal plots stacked vertically. A legend on the right. Axes labels.
2.  **Axes:**
    *   Y-axis (common label): "Amplitude (Arbitrary)". Range from -2 to 2. Ticks at integers.
    *   X-axis (common label): "Time (Arbitrary)". Range from 0.0 to roughly 9 or 10 based on the grid, but ticks are at 0.0, 2.5, 5.0, 7.5.
3.  **Top Plot:**
    *   Label: "base" (vertical text on the right side of the plot area).
    *   Line color: Red/Salmon.
    *   Shape: A sine wave. Starts near -0.5, goes up to a peak at y=1 around x=2.5, down to a trough at y=-1 around x=6.25 (midway between 5 and 7.5), back up to a peak at y=1 around x=8.75. Wait, let's look closer.
    *   Let's re-evaluate the top wave. It starts at roughly -0.5 at x=0. It peaks at y=1 around x=2.5. It crosses zero around x=3.75. It troughs at y=-1 around x=6.25. It crosses zero again around x=8.75. Wait, looking at the grid lines...
    *   Grid lines: Vertical lines are at 0.0, 2.5, 5.0, 7.5. There are fainter vertical lines in between. Let's assume a standard grid.
    *   Top wave details: Starts at y=-0.5 (approx). Peaks at y=1 around x=2.5. Crosses zero at x=3.75. Troughs at y=-1 around x=6.25. Crosses zero at x=8.75. Ends near y=-0.5 at the right edge. Actually, looking very closely, it looks like a sine wave starting at -0.5 amplitude. Let's trace it carefully.
    *   At x=0, y is roughly -0.5.
    *   At x=2.5 (first major grid line), y is at peak = 1.
    *   At x=5.0 (second major grid line), y is crossing zero going down? No, wait.
    *   Let's look at the green wave below it to calibrate.
4.  **Middle Plot:**
    *   Label: "phase_opposite".
    *   Line color: Green.
    *   Shape: Inverted sine wave relative to the top one? Or shifted?
    *   At x=0, y is roughly +0.5.
    *   At x=2.5, y is crossing zero going down.
    *   At x=5.0 (second major grid line), y is at trough = -1. Wait, looking at the green wave...
    *   Let's re-examine the peaks/troughs alignment.
    *   Top wave: Peak at x ~ 2.5. Trough at x ~ 6.25? No, let's look at the grid again.
    *   The vertical grid lines are spaced by 1 unit? No, labels are 0.0, 2.5, 5.0, 7.5. So major intervals are 2.5. There are 4 subdivisions between 0 and 2.5. That means each minor grid line is 0.625 units wide.
    *   Let's look at the top wave again. Peak is exactly on the vertical line corresponding to x=2.5? No, it looks slightly before. Wait, let's look at the green wave. Trough is at x ~ 1.8? And peak at x ~ 5.0?
    *   Let's try a different approach. Look for symmetry.
    *   Top wave: Peak at y=1. Looks like it happens around x=2.5. Another peak at y=1 around x=7.5? No, the second peak is slightly after 7.5.
    *   Let's look at the green wave. Trough at y=-1. Looks like it happens around x=1.8 and x=6.25? Peak at y=1 around x=5.0.
    *   Actually, let's look at the "sum" plot. It is a flat blue line at y=0. This implies destructive interference. The
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