# hw5 - [1/5 Constructing and Solving Linear Systems Homework...

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3/15/2016 [1/5] Constructing and Solving Linear Systems - Homework 5 - RELATE 1/1 Constructing and Solving Linear Systems In this problem, we will construct and solve a linear system, . The problem narrative is the following: You are working on a new electronic device. And for this device, it is critical to understand how much power is being consumed by each of the 10 components on it. But from your test setup, you can not directly measure how much power each component is using. Instead you can measure how much power the entire device uses and the duration that each component was operating (e.g. the device consumed 5 milliwatts with the microphone operating for 1 second and the screen for 0.5 seconds). Your goal is to calculate the energy consumed per second by each component on the device. You will do this by setting up a linear system and then solving using numpy.linalg.solve . You will be given a python dictionary called test_data that contains measurements from 10 different tests. Each test is stored as a python list of tuples. (e.g. [('LED0', 0.58), ('Screen', 0.24), ('PowerConsumed', 1.2), ...]). The tuple with first entry equal to 'PowerConsumed' is the power consumed by the device on that test. The other tuples tell you how much time each component was running for. You will also be given a python list of the components called components . Using these two inputs, build a linear system to solve for the energy per second consumption of each component. You may use numpy.linalg.solve to solve your linear system. Return x

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