qiskit/pulse/pulse_lib/continuous.py
def cos(times: np.ndarray, amp: complex, freq: float, phase: float = 0) -> np.ndarray:
    """Continuous cosine wave.

    Args:
        times: Times to output wave for.
        amp: Pulse amplitude.
        freq: Pulse frequency, units of 1/dt.
        phase: Pulse phase.
    """
    return amp*np.cos(2*np.pi*freq*times+phase).astype(np.complex_)
def cos(times: np.ndarray, amp: complex, freq: float, phase: float = 0) -> np.ndarray:
    """Continuous cosine wave.

    Args:
        times: Times to output wave for.
        amp: Pulse amplitude.
        freq: Pulse frequency, units of 1/dt.
        phase: Pulse phase.
    """
    return amp*np.cos(2*np.pi*freq*times+phase).astype(np.complex_)
Continuous cosine wave.

    Args:
        times: Times to output wave for.
        amp: Pulse amplitude.
        freq: Pulse frequency, units of 1/dt.
        phase: Pulse phase.