Eagle-E

ffmpeg -i video.mp4 -r 10 -s 640x360 -q:v 2 -vframes 25 frame%03d.jpg

# -r = frames per second
# -vframes = number of total frames to extract
# -s = resolution (width x height)
# -q:v = quality of extracted frames, 1 (highest) to 31 (lowest quality)
# frame%03d.jpg = output path (i.e. frame000.jpg, frame001.jpg, ...)

Eagle-E

input_file=example.mkv
output_file=example-nosound.mkv

ffmpeg -i $input_file -c copy -an $output_file

Eagle-E

def sample_points_on_sphere(radius = 1, vres = 10, hres = 10):
    """ Sample points on a sphere that has the given radius.
    Args:
        - vres: vertical resolution, the amount of heights at which the sphere will 
                be sampled, the vertical distances are sampled at even distances
        - hres: horizontal resolution, same as vres but horizontally
    """
    def sample(r, theta, phi):
        x = r * np.sin(theta) * np.cos(phi)
        y = r * np.sin(theta) * np.sin(phi)

Eagle-E

// 0.809017 = (1.0f + sqrt(5.0f)) / 2 / 2 (half the length of the golden rectangle)
vertices:
        (-0.809017,   0,         0.5)
        (-0.809017,   0,        -0.5)
        (0.809017,    0,        -0.5)
        (0.809017,    0,         0.5)
        (-0.5,        0.809017,  0)
        (0.5,         0.809017,  0)
        (0.5,        -0.809017,  0)
        (-0.5,       -0.809017,  0)