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This page contains a list of the exercises in the text, including supplemental problems. It is mainly intended for use by people who are generating solutions to the exercises. Instructors can also use this page to see what problems have solutions available.

Note:: if you are looking for solutions to the exercises, you won't find them here. Solutions to exercises are available to course instructors by contacting Princeton University Press.

Guide to entries

Each entry in the table below contains the following information (the two-letter code in parenthesis is used in the table entry macros):

  • Exercise number (ex): the number of the exercise in the solutions manual. Items marked with a * appear in the printed version of the text.
  • Directory (di): the name of the subdirectory where the exercise appears. This does not appear in the table directly, but is used to create the link to the exercise.
  • Title (ti): a short descriptive title for the exercise.
  • Filename (fi): the base filename used for the exercise. Clicking on the link will take you to the LaTeX source code for the exercise (requires login).
  • Solution status (st): current status of the solutions. The following abbreviations are used:
    • C (complete) - complete solution is available
    • A (available) - solution is available, but not yet verified and/or edited
    • P (partial) - partial solution is available (some parts, missing figures/code, etc)
    • I (in progress) - solution is being written, but is not yet available
    • U (unavailable) or blank - no solution is currently available
    • X (not planned) - no solution is planned
  • Author (au): initials for the author of the solutions
  • Comment (co): additional comments.

How to sign up to write a solution for an exercise:

  1. Find an exercise whose solution status is either unavailable (U) or partial (P)
  2. Edit the table and add your name to the 're' entry in the table
  3. Add the page to your watch list so that you can see when there is a change in status
  4. Wait until you are assigned a set of problems to work on (status will be changed to 'I', with your initials listed in the author column.

Chapter 1 - Introduction

Num Title Filename Stat Auth Comments
1.1* Vestibulo-occular reflex eyemotion A KJA
1.2* Everyday examples of feedback systems fbkexamps A Misc
1.3* Human balance system balance-human A CL
1.4* Exploring the performance of a cruise controller cruise-redesign A CL
1.5* Integral action integral A KJA
1.6* Popular press articles nytexamps A RMM
1.7 Milk supply chain milksupply P KJA Figure missing
1.8 Exploring the performance of a cruise controller (supplemental) cruise-mlintro A CL Cleaned up preliminary solution with model from 3.1.
1.9 MATLAB ball and beam ballbeam-mlintro P Misc Preliminary solution available; could be cleaned up;
1.10 Web search: voltage clamp voltageclamp Give short intro plus web links
1.11 Web search: haptics and force feedback haptics Give short intro plus web links
1.12 Anti-rollover control rollover Give short summary of regulations

Chapter 2 - System Modeling

Num Title Filename Stat Auth Comments
2.1* Chain of integrators form chainofint A SH
2.2* Inverted pendulum balance-bal2inv P
2.3* Disrete-time dynamics discrete-solutions A SH
2.4* Keynesian economics discrete-keynes A SH
2.5* Least squares system identification sysid-leastsq A SH
2.6* Normalized oscillator dynamics oscillator A SH
2.7* Electric generator powergrid P
2.8* Admission control for a queue queue-admcontrol P
2.9* Biological switch biocircuits-switchmod P
2.10* Motor drive dcmotor-modeling A SH
2.11 Uncertainty lemon lemon P
2.12 Frequency response freqresp
2.13 Eye and head motion occular-blockdiag P
2.14 Second-order system identification sysid-logdec
2.15 Insect vision flyvision P
2.16 State space model for balance systems balance-statespace
2.17 fingerflame P
2.18 Consensus and invariants compsys-invariants P
2.19 Electric motor electricmotor P
2.20 exothermic
2.21 caffeine P
2.22 ballbeam-modeling P
2.23 pvtol2invpend
2.24 flyflight
2.25 pendulum P

Chapter 3 - Examples

Num Title Filename Stat Auth Comments
3.1* Cruise control cruise-hillsim A CL
3.2* Bicycle dynamics bicycle-statespace KJA
3.3* Bicycle steering bicycle-steering KJA
3.4* Operational amplifier circuit opamp-twopole A SH
3.5* Operational amplifier oscillator opamp-osc A SH possible typo: R_1 C_1 --> R_2 C_2
3.6* Congestion control using RED~\cite{Low+02:infocom} congctrl-red P
3.7* Atomic force microscope with piezo tube afm-preload A SH
3.8* Drug administration drugadmin-alcohol
3.9* Population dynamics logistic A SH
3.10* Fisheries management fishery-modeling P
3.11 Cruise control with powertrain dynamics powertrain P

Chapter 4 - Dynamic Behavior

Num Title Filename Stat Auth Comments
4.1* Time-invariant systems timeshift I SH \tau is not defined
4.2* Flow in a tank tank-modeling A SH a_e --> a?
4.3* Cruise control cruise-phaseplot A CL Solution updated to match dynamics in text
4.4* Lyapunov functions lyap-secord I SH Consider modifying V_2(x)?
4.5* Damped spring--mass system lyap-oscillator P
4.6* Electric generator powergrid P
4.7* Lyapunov equation lyapqen
4.8* Congestion control congctrl-lyapstab P
4.9* Swinging up a pendulum invpend-swingup P
4.10* Root locus diagram rootlocus P
4.11* Discrete-time Lyapunov function discrete-lyapunov
4.12* Operational amplifier oscillator opamp-oscnl I SH Additional assumption on the resistances & capacitances?
4.13* Self-activating genetic circuit biocircuits-posfbk P
4.14* Diagonal systems modal-form P
4.15* Furuta pendulum furuta P
4.16* Routh-Hurwitz criterion routh
4.17 Exponential stability expstab
4.18 Population dynamics popdyn-logistic P
4.19 Predator prey predprey-limit P
4.20 Windup protection by conditional integration windup-condit P
4.21 Gain scheduling, stability gainsched-stabiility
4.22 Spike generation in neurons fitzhugh-nagumo P
4.23 Consensus dynamics compsys-consensus
4.24 Steering dynamics of a ship tanker-dynamics P
4.25 Pitchfork bifurcation pitchfork
4.26 Stability examples stabexmp P
4.27 Lyapunov stability for cruise control cruise-lyapunov A CL Please add original author of solution to tex file
4.28 Lyapunov stability examples lyapexmp P

Chapter 5 - Linear Systems

Num Title Filename Stat Auth Comments
5.1* Response to the derivative of a signal dersys A SH
5.2* Impulse response and convolution impulse-response A SH
5.3* Pulse response for a compartment model compartment-pulse I SH Need to specify parameter values
5.4* Matrix exponential for second-order system matrixexp P
5.5* Lyapunov function for a linear system lyap-linear A SH
5.6* Nondiagonal Jordan form missing P
5.7* Rise time for a first-order system risetime-firstord A SH Result does not match the answer
5.8* Discrete-time systems discrete-linsys P
5.9* Keynesian economics discrete-keynes A SH
5.10* missing P
5.11* Transcriptional regulation biocircuits-negfbk P
5.12 Normalized coordinates for second-order system missing
5.13 Matrix exponential for Jordan form missing
5.14 Solution of a second-order system missing
5.15 Monotone step response missing
5.16 missing P
5.17 missing P
5.18 linexmp-coupled P
5.19 State variables in compartment models compartment-states
5.20 queue-linsys P
5.21 Keynes model in continuous time missing
5.22 cartpend P
5.23 missing P

Chapter 6 - State Feedback

Num Title Filename Stat Auth Comments
6.1 Double integrator missing P
6.2 Reachability from nonzero initial state missing
6.3 Unreachable systems missing
6.4 Integral feedback for rejecting constant disturbances missing
6.5 Rear-steered bicycle bicycle-rearsteer P
6.6 Characteristic polynomial for reachable canonical form missing
6.7 Reachability matrix for reachable canonical form missing P
6.8 Non-maintainable equilibria missing P
6.9 Eigenvalue assignment for unreachable system missing P
6.10 Cayley--Hamilton theorem missing
6.11 Motor drive missing
6.12 Whipple bicycle model bicycle-whipple P
6.13 Atomic force microscope missing
6.14 missing P
6.15 Bryson's rule brysons-rule
6.16 integral-refgain
6.17 Unreachable compartment model compartment-nonreach P
6.18 missing
6.19 missing

Chapter 7 - Output Feedback

Num Title Filename Stat Auth Comments
7.1 Coordinate transformations missing
7.2 missing
7.3 Observable canonical form missing
7.4 Bicycle dynamics bicycle-observability P
7.5 Integral action integral-action P
7.6 Vectored thrust aircraft pvtol-ssctrl P
7.7 Uniqueness of observers missing
7.8 Observers using differentiation diff
7.9 Observer for Teorell's compartment model compartment-teorellobs P
7.10 Observer design for motor drive dcmotor-observer P
7.11 Feedforward design for motor drive dcmotor-feedforward P
7.12 Whipple bicycle model bicycle-whipple
7.13 Discrete-time random walk kalman-randomwalk P
7.14 Kalman decomposition missing
7.15 missing
7.16 Balance system balance-observable
7.17 Balance system with biased measurement balance-statectrl
7.18 Duality missing
7.19 Balance system missing
7.20 Trajectory generation trajgen-scalar
7.21 Selection of eigenvalues missing
7.22 Kalman filter for scalar ODE kalman-scalar P

Chapter 8 - Transfer Functions

Num Title Filename Stat Auth Comments
8.1* Steady state response to a sinusoid sininput A SH
8.2* Modal response for a first order system modalinput A SH
8.3* Inverted pendulum invpend-xferfcn A SH
8.4* Solutions corresponding to poles and zeros pzsolns A SH
8.5* Operational amplifier opamp-pictrl A SH
8.6* Transfer function for state space system ssxferfcn A SH
8.7* Kalman decomposition kalmandecomp
8.8* Transfer functions for control systems ctrlxferfcns A SH
8.9* Bode plot for a simple zero bode-zero A SH
8.10* Vectored thrust aircraft pvtol-lateraltf A SH
8.11* Common poles missing
8.12* Congestion control congctrl-xferfcns P
8.13* Inverted pendulum with PD control invpend-pzcancel A SH
8.14* Vehicle suspension~\cite{hedrick90} vehicle-quartercar A SH
8.15* Vibration absorber vibdamper A SH
8.16 freqexamps P
8.17 model-simplification
8.18 cruise-pictrl P CL Needs to be updated to use model from Ch 3; not yet committed to repository
8.19 dcmotor-xferfcn
8.20 missing
8.21 missing P
8.22 missing
8.23 missing

Chapter 9 - Frequency Domain Analysis

Num Title Filename Stat Auth Comments
9.1 Operational amplifier opamp-unitygain P
9.2 Atomic force microscope afm-tapping
9.3 Heat conduction missing P
9.4 Vectored thrust aircraft pvtol-looptf P
9.5 Vehicle steering missing
9.6 Stability margins for second-order systems missing P
9.7 Congestion control in overload conditions congctrl-overload P
9.8 Bode's formula missing
9.9 Pad\'e approximation to a time delay missing
9.10 Inverse response missing P
9.11 Describing function analysis missing
9.12 Right half-plane pole missing P
9.13 Third-order system missing
9.14 bodenyq P
9.15 Congestion control using TCP/Reno congctrl-margins
9.16 opamp-routh P
9.17 missing P
9.18 Limitations missing
9.19 Limitations missing
9.20 Delay differential equations delayde P
9.21 Cruise control design cruise-pictrl P CL Model may need updating; check for duplication with similar exercise in previous chapter

Chapter 10 - PID Control

Num Title Filename Stat Auth Comments
10.1 Ideal PID controllers missing
10.2 missing
10.3 missing P
10.4 Ziegler--Nichols tuning missing P
10.5 Vehicle steering steering-pi P
10.6 Congestion control congctrl-pituning P
10.7 Motor drive dcmotor-pdctrl P
10.8 missing
10.9 Tuning rules missing P
10.10 Windup and anti-windup missing
10.11 Windup protection by conditional integration missing P
10.12 pidmethods P
10.13 pidexmps P
10.14 Compartment model compartment-monotone
10.15 missing P
10.16 pirlocus P
10.17 pvtol-pid P
10.18 Ball and beam missing
10.19 balance-pid P

Chapter 11 - Frequency Domain Synthesis

Num Title Filename Stat Auth Comments
11.1 gangoffour.tex P
11.2 rhppole-cancel.tex P
11.3 gangoffour-hinfstruc.tex P
11.4 springmass-feedforward.tex P
11.5 Sensitivity of feedback and feedforward sensitivity-gyr.tex P
11.6 Equivalence of controllers with two degrees of freedom twodof-equiv.tex P
11.7 Disturbance attenuation sensitivity-atten.tex P
11.8 Disturbance reduction through feedback sensitivity-twopole.tex P
11.9 noiseapprox.tex P
11.10 Attenuation of low-frequency sinusoidal disturbances sinusoid-atten.tex P
11.11 lead-phasecalc.tex P
11.12 rhppzpair.tex P
11.13 sensitivity-pzdel.tex P
11.14 Phase margin formulas sensitivity-pm.tex P
11.15 balance-visual.tex P
11.16 Rear-steered bicycle bicycle-rearsteer.tex P
11.17 bode-compsens.tex P
11.18 Rise-time/bandwidth product risetime-bandwidth.tex P
11.19 laplace-smalltime.tex P
11.20 znlimits.tex P
11.21 Pole in the right half-plane and time delay rhppole-delay.tex P
11.22 Cancellation of unstable process zero steering-reverse.tex
11.23 Limitations on achievable phase lag rhppole-limitations.tex P
11.24 pvtol-gangoffour.tex
11.25 Performance characteristics of second-order systems secord-perf.tex P
11.26 secord-rhpz.tex P
11.27 Integral of complementary sensitivity bode-compsens-alt.tex P
11.28 Bode's integral bode-compsens-norolloff.tex P
11.29 Lead compensator for an insect flight control system flylead.tex P
11.30 Control of a magnetic levitation system maglev.tex P
11.31 pvtol-gangof4.tex
11.32 Relationship between gain and sensitivity crossover frequencies sensitivity-margins P KJA

Chapter 12 - Robust Performance

Num Title Filename Stat Auth Comments
12.1* uncertainty-onepole.tex P
12.2* uncertainty-twopole.tex P
12.3* Difference in sensitivity functions sensitivity-difference.tex P
12.4* The Riemann sphere vinnecombe-sphere.tex P
12.5* Stability margins sensitivity-maxpm.tex P
12.6 idealbode-margins.tex P
12.7* idealbode-fracsys.tex P
12.8* Smith predictor smith-predictor.tex P
12.9* Ideal delay compensator delay-compensation.tex P
12.10* Vehicle steering steering-nyquist.tex P
12.11* design-fourthord.tex P
12.12* AFM nanopositioning system afm-robustpid.tex
12.13* $H_\infty$ control hinf-singval.tex
12.14* hinf-vinnecombe.tex
12.15* robust-statespace.tex P
12.16* Robustness using the Nyquist criterion robust-nyquist.tex P
12.17 Robustness inequalities robustness-conditions.tex
12.18 vinnecombe-nonunity.tex
12.19 vinnecombe-onepole.tex
12.20 Disk drive tracking missing