v1.11.2

ControlSystems v1.11.2

Diff since v1.11.1

Merged pull requests:

• do not promote system type when creating a vector (#958) (@baggepinnen)
• remove some dependencies (#959) (@baggepinnen)
• move DSP to an extension (#960) (@baggepinnen)
• Fix negative phase margin (#962) (@baggepinnen)
• Extend docstring (#963) (@CasBex)
• Export PID conversion functions (#964) (@baggepinnen)
• allow more discretization methods in lsim (#966) (@baggepinnen)
• add backward euler discretization (#967) (@baggepinnen)
• add Padé approximation with different numerator and denominator degree (#968) (@baggepinnen)
• handle phase wrapping in margin (#969) (@baggepinnen)
• tweak computation of integrator excess (#970) (@baggepinnen)

Closed issues:

• margin() gives incorrect phase margin for system with negative margin (#961)

v1.11.1

ControlSystems v1.11.1

Diff since v1.11.0

Merged pull requests:

• add 2DOF pid constructor (#951) (@baggepinnen)
• make feedback2dof work for any system type (#952) (@baggepinnen)
• add filter_order option to pid (#953) (@baggepinnen)
• add support for setting filter damping in pid (#954) (@baggepinnen)
• add bodemag_nohess! (#955) (@baggepinnen)
• avoid some type issues arising with Symbolics (#956) (@baggepinnen)
• add fast path for kd=0 in pid_2dof (#957) (@baggepinnen)

Closed issues:

• Tests for pid_design.jl and discrete.jl (#58)
• ControlSystems + DSP (#92)
• Function tf and ss (#145)
• to_matrix (#224)
• Remove LaTeX in plot recipies (#383)
• Problems with getPhaseTicks and getLogTicks (#435)
• Luenberger/Ackermann pole placement for MIMO systems. (#456)
• Update docs for freqresp (#461)
• Help Request: Time Varying LQR Solution (#463)
• Deprecate norm? (#543)
• Remaining uses of plot (#610)
• Building a vector of both continuous and discrete (#665)
• Delay system in feedback path throws a method error (#762)
• LsimWorkspace not working for discrete transfer functions (#833)
• Implement /\ in terms of feedback (#901)

v1.11.0

ControlSystems v1.11.0

Diff since v1.10.5

Merged pull requests:

• fix #941 (#942) (@baggepinnen)
• add concatenation for SimResult (#945) (@baggepinnen)
• bump compat DSP (#946) (@baggepinnen)
• Add function for stable/unstable decomposition (#947) (@baggepinnen)
• remove use of Polyester.@batch due to segfault (#948) (@baggepinnen)
• widen the scope of ss*mat method (#949) (@baggepinnen)
• add tools for counting multiple eigvals and adjust bode phase start (#950) (@baggepinnen)

Closed issues:

• bode() returns only phases in interval +/- 180° (#422)
• margin throws an error when the system has delay (#941)
• augstate function for full-state feedback functionality. (#943)

v1.10.5

ControlSystems v1.10.5

Diff since v1.10.4

Merged pull requests:

• use eps of correct type in balreal (#927) (@baggepinnen)
• Update minreal docstring (#935) (@franckgaga)
• add fix for step with plotx and MIMO systems (#936) (@baggepinnen)
• add functions returning the resolvent of a system (#939) (@baggepinnen)
• bump compat DiffEqCallbacks (#940) (@baggepinnen)

Closed issues:

• Revisiting old code: was there ever an LTISystem composed type in ControlSystems.jl? (#938)

v1.10.4

ControlSystems v1.10.4

Diff since v1.10.3

Merged pull requests:

• Add "asymptotic" keyword to kalman docstring (#929) (@franckgaga)
• add \ for ss and handle some cases of multiplication with improper tf (#930) (@baggepinnen)
• Update zoh.md (#933) (@baggepinnen)
• handle non-identity uniform scalings in covar (#934) (@baggepinnen)

Closed issues:

• Optimization-based tuning–PID controller with Delay (#931)
• An incorrect formula in the documentation (#932)

v1.10.3

ControlSystems v1.10.3

Diff since v1.10.2

Merged pull requests:

• more helpful error message in baltrunc (#926) (@baggepinnen)
• bump compat DiffEqCallbacks (#928) (@baggepinnen)

Closed issues:

• B matrix cannot contain too many zero elements for baltrunc (#925)

v1.10.2

ControlSystems v1.10.2

Diff since v1.10.1

Merged pull requests:

• Fix Bode plot with zero magnitude (#911) (@baggepinnen)
• try enable CI caches (#914) (@baggepinnen)
• handle rounding error in Nyquist freq for default freq vec (#915) (@baggepinnen)
• Update compat OrdinaryDiffEq (#923) (@baggepinnen)

Closed issues:

• Discrete bode default axis ranges (#438)
• Change input/output plot order of SimResult (#919)
• Step response (at a t0 instant) of a first order system with delay doesn't work correctly with lsim (but works fine with step but with t0=0) (#920)

v1.10.1

ControlSystems v1.10.1

Diff since v1.10.0

Merged pull requests:

• try make codecov look at results from all test groups (#907) (@baggepinnen)
• fix #909 (#910) (@baggepinnen)

Closed issues:

• d2c_exact should work with gains (i.e. state space systems without states) (#909)

v1.10.0

ControlSystems v1.10.0

Diff since v1.9.0

Merged pull requests:

• add Thiran approximation of fractional-delay systems (#905) (@baggepinnen)
• handle proper quotient of proper statespace systems (#906) (@baggepinnen)

v1.10.0

ControlSystems v1.10.0

Diff since v1.9.0

Merged pull requests:

• add Thiran approximation of fractional-delay systems (#905) (@baggepinnen)
• handle proper quotient of proper statespace systems (#906) (@baggepinnen)