# stf_operator¶

Graph.stf_operator(signal, operator)

Create a constant operator multiplied by a sampleable signal.

Parameters
• signal (Stf) – A sampleable function representing the signal $$a(t)$$ or a batch of sampleable functions.

• operator (np.ndarray or Tensor) – The operator $$A$$. It must have two equal dimensions.

Returns

The sampleable operator $$a(t)A$$ (or batch of sampleable operators, if you provide a batch of signals).

Return type

Stf

constant_stf_operator()

Create a constant Stf operator.

pwc_operator()

Corresponding operation for Pwcs.

stf_sum()

Sum multiple Stfs.

Notes

For more information on Stf nodes see the Working with time-dependent functions in Boulder Opal topic.