#########################################################################################
##
## REDUCTION BLOCKS (blocks/multiplier.py)
##
## This module defines static 'Multiplier' block
##
## Milan Rother 2024
##
#########################################################################################
# IMPORTS ===============================================================================
import numpy as np
from ._block import Block
from ..utils.utils import dict_to_array
# MISO BLOCKS ===========================================================================
[docs]
class Multiplier(Block):
"""multiplies all input signals (MISO)
.. math::
y(t) = \\prod_i u_i(t)
"""
[docs]
def update(self, t):
"""update system equation fixed point loop
Parameters
----------
t : float
evaluation time
Returns
-------
error : float
relative error to previous iteration for convergence control
"""
prev_output = self.outputs[0]
self.outputs[0] = np.prod(dict_to_array(self.inputs), axis=0)
return abs(prev_output - self.outputs[0])