I have a 4-dimensional system with 4 states x=(x1, x2, x3,x4) as follow:
A =[ 0 1 0 0
0 -6.7811 203.43 1.6275
0 0 0 1
0 0.89105 -26.732 -6.8804];
B =[ 0
101.72
0
61.26];
xmin = [-2; -5;-4; -2];xmax = [0; 50; 10; 10];
umin =-5;umax =5;
and a I must plot a Polyhedron as follow only for x1 , x2
X = Polyhedron(‘lb’,model.x.min,’ub’,model.x.max);
above-mentionaed Polyhedron is 4-dimentional and it is not possible to plot it.
i want to plot this polyhedron in 2-dimensional page only for x1 and x2 states such that x1 state is considered as horizontal axis and x2 state is considered as vertical axis.
How can I do that in Matlab?I have a 4-dimensional system with 4 states x=(x1, x2, x3,x4) as follow:
A =[ 0 1 0 0
0 -6.7811 203.43 1.6275
0 0 0 1
0 0.89105 -26.732 -6.8804];
B =[ 0
101.72
0
61.26];
xmin = [-2; -5;-4; -2];xmax = [0; 50; 10; 10];
umin =-5;umax =5;
and a I must plot a Polyhedron as follow only for x1 , x2
X = Polyhedron(‘lb’,model.x.min,’ub’,model.x.max);
above-mentionaed Polyhedron is 4-dimentional and it is not possible to plot it.
i want to plot this polyhedron in 2-dimensional page only for x1 and x2 states such that x1 state is considered as horizontal axis and x2 state is considered as vertical axis.
How can I do that in Matlab? I have a 4-dimensional system with 4 states x=(x1, x2, x3,x4) as follow:
A =[ 0 1 0 0
0 -6.7811 203.43 1.6275
0 0 0 1
0 0.89105 -26.732 -6.8804];
B =[ 0
101.72
0
61.26];
xmin = [-2; -5;-4; -2];xmax = [0; 50; 10; 10];
umin =-5;umax =5;
and a I must plot a Polyhedron as follow only for x1 , x2
X = Polyhedron(‘lb’,model.x.min,’ub’,model.x.max);
above-mentionaed Polyhedron is 4-dimentional and it is not possible to plot it.
i want to plot this polyhedron in 2-dimensional page only for x1 and x2 states such that x1 state is considered as horizontal axis and x2 state is considered as vertical axis.
How can I do that in Matlab? polyhedron, mpc MATLAB Answers — New Questions

​

I want to extract the data of a row in a table, how to do it
exam: Name address age
hang VN 18
nam vn 40
lan vn 23

I want to retrieve the information of a man named Nam
help me!I want to extract the data of a row in a table, how to do it
exam: Name address age
hang VN 18
nam vn 40
lan vn 23

I want to retrieve the information of a man named Nam
help me! I want to extract the data of a row in a table, how to do it
exam: Name address age
hang VN 18
nam vn 40
lan vn 23

I want to retrieve the information of a man named Nam
help me! extract 1 row data of 1 table MATLAB Answers — New Questions

​

Problem:
When I adjust the latent heat, there’s no change in the temperature curve of the XPS material. I anticipate a stable temperature, ranging between 305K and 320K. So the problem is that the material does not release the absorbed heat.
equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)
T == M.T;
if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end
if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

explanation of the full code:

This code describes a thermal component that models internal energy storage in a thermal network. Here’s a breakdown of the main parts of this code:

1. **Nodes**: These are points where other components can connect. Two thermal nodes are defined: `M` (top) and `N` (bottom).

2. **Inputs**: These values can be supplied from outside. `Mdot` represents the mass flow rate (in kg/s) and `T_in` is the input temperature (in Kelvin).

3. **Parameters**: These values determine the behavior of the component. They include:
– `mass_type`: Type of mass (constant or variable).
– `mass`: The mass of the thermal component.
– `Cps` and `Cpl`: Specific heat capacity for solid and liquid, respectively.
– `Tmelt_start` and `Tmelt_end`: The temperature range where the material starts melting and stops melting.
– `L`: Specific latent heat.
– `mass_min`: Minimum mass.
– `num_ports`: The number of graphical ports.

4. **Annotations**: These are metadata that provide additional information about the component or dictate how it is displayed in a GUI. Here, it is primarily used to indicate which parameters can be modified externally and to define the component’s icon.

5. **Variables**: These represent the internal states of the component. They include:
– `m`: The mass.
– `T`: The temperature.
– `phase`: The phase (0 for solid, 1 for liquid, and values in between for a mixed phase).
– `phaseChangeRate`: The rate of phase change.
– `Q`: Heat flow rate.

6. **Branches**: These are connections between different parts of the network. Here, the heat flow `Q` from node `M` to another part of the network is defined.

7. **Equations**: These describe the mathematical relationships between the different variables and parameters. They include:
– Relationships between `T`, `Q`, `m`, and other variables, especially around phase change.
– Constraints on certain values (like that `Cps`, `Cpl`, and `T` must be positive).

8. **Connections**: These are the actual connections between the different nodes within the component. Here, node `M` is connected to node `N`.

The essence of this component is that it models a thermal mass that can store and release energy. It also accounts for phase changes, meaning it can melt or solidify within a certain temperature range.
component derdecomponent
% Thermal Mass
% This block models internal energy storage in a thermal network.

nodes
M = foundation.thermal.thermal; % :top
end

inputs(ExternalAccess = none)
Mdot = {0, ‘kg/s’}; % Mdot:bottom
T_in = {300, ‘K’}; % Tin:bottom
end

nodes(ExternalAccess = none)
N = foundation.thermal.thermal; % :bottom
end

parameters
mass_type = foundation.enum.constant_variable.constant; % Mass type
end

parameters (ExternalAccess = none)
mass = {1, ‘kg’}; % Mass
end

parameters
Cps = {200, ‘J/(kg*K)’}; % Specific heat solid
Cpl = {1000, ‘J/(kg*K)’}; % Specific heat liquid
Tmelt_start = {320, ‘K’}; % Start Melting Temperature
Tmelt_end = {305, ‘K’}; % End Melting Temperature
L = {100, ‘J/(kg)’}; % Specific Latent Heat
end

parameters (ExternalAccess = none)
mass_min = {1e-6,’kg’}; % Minimum mass
end

parameters
num_ports = foundation.enum.numPorts2.one; % Number of graphical ports
end

if num_ports == 2
annotations
N : ExternalAccess=modify
end
if mass_type == foundation.enum.constant_variable.constant
annotations
% Icon = ‘mass2.svg’
end
else
annotations
% Icon = ‘mass4.svg’
end
end
else
if mass_type == foundation.enum.constant_variable.variable
annotations
% Icon = ‘mass3.svg’
end
end
end

if mass_type == foundation.enum.constant_variable.constant
annotations
mass : ExternalAccess=modify
end
equations
m == {1,’kg’};
end
else
annotations
[Mdot, T_in, m, mass_min] : ExternalAccess=modify
end
equations
assert(mass_min > 0)
end
end

variables (ExternalAccess=none)
m = {value = {1,’kg’}, priority=priority.high}; % Mass
end

variables
T = {value = {300, ‘K’}, priority = priority.high}; % Temperature
phase = {value = {0, ‘1’}, priority = priority.high}; % Phase
phaseChangeRate = {0, ‘1/s’}; % Rate of phase change
end

variables (Access=private)
Q = {0, ‘W’}; % Heat flow rate
end

branches
Q : M.Q -> *;
end

equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)

T == M.T;

if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end

if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

connections
connect(M,N)
end

endProblem:
When I adjust the latent heat, there’s no change in the temperature curve of the XPS material. I anticipate a stable temperature, ranging between 305K and 320K. So the problem is that the material does not release the absorbed heat.
equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)
T == M.T;
if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end
if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

explanation of the full code:

This code describes a thermal component that models internal energy storage in a thermal network. Here’s a breakdown of the main parts of this code:

1. **Nodes**: These are points where other components can connect. Two thermal nodes are defined: `M` (top) and `N` (bottom).

2. **Inputs**: These values can be supplied from outside. `Mdot` represents the mass flow rate (in kg/s) and `T_in` is the input temperature (in Kelvin).

3. **Parameters**: These values determine the behavior of the component. They include:
– `mass_type`: Type of mass (constant or variable).
– `mass`: The mass of the thermal component.
– `Cps` and `Cpl`: Specific heat capacity for solid and liquid, respectively.
– `Tmelt_start` and `Tmelt_end`: The temperature range where the material starts melting and stops melting.
– `L`: Specific latent heat.
– `mass_min`: Minimum mass.
– `num_ports`: The number of graphical ports.

4. **Annotations**: These are metadata that provide additional information about the component or dictate how it is displayed in a GUI. Here, it is primarily used to indicate which parameters can be modified externally and to define the component’s icon.

5. **Variables**: These represent the internal states of the component. They include:
– `m`: The mass.
– `T`: The temperature.
– `phase`: The phase (0 for solid, 1 for liquid, and values in between for a mixed phase).
– `phaseChangeRate`: The rate of phase change.
– `Q`: Heat flow rate.

6. **Branches**: These are connections between different parts of the network. Here, the heat flow `Q` from node `M` to another part of the network is defined.

7. **Equations**: These describe the mathematical relationships between the different variables and parameters. They include:
– Relationships between `T`, `Q`, `m`, and other variables, especially around phase change.
– Constraints on certain values (like that `Cps`, `Cpl`, and `T` must be positive).

8. **Connections**: These are the actual connections between the different nodes within the component. Here, node `M` is connected to node `N`.

The essence of this component is that it models a thermal mass that can store and release energy. It also accounts for phase changes, meaning it can melt or solidify within a certain temperature range.
component derdecomponent
% Thermal Mass
% This block models internal energy storage in a thermal network.

nodes
M = foundation.thermal.thermal; % :top
end

inputs(ExternalAccess = none)
Mdot = {0, ‘kg/s’}; % Mdot:bottom
T_in = {300, ‘K’}; % Tin:bottom
end

nodes(ExternalAccess = none)
N = foundation.thermal.thermal; % :bottom
end

parameters
mass_type = foundation.enum.constant_variable.constant; % Mass type
end

parameters (ExternalAccess = none)
mass = {1, ‘kg’}; % Mass
end

parameters
Cps = {200, ‘J/(kg*K)’}; % Specific heat solid
Cpl = {1000, ‘J/(kg*K)’}; % Specific heat liquid
Tmelt_start = {320, ‘K’}; % Start Melting Temperature
Tmelt_end = {305, ‘K’}; % End Melting Temperature
L = {100, ‘J/(kg)’}; % Specific Latent Heat
end

parameters (ExternalAccess = none)
mass_min = {1e-6,’kg’}; % Minimum mass
end

parameters
num_ports = foundation.enum.numPorts2.one; % Number of graphical ports
end

if num_ports == 2
annotations
N : ExternalAccess=modify
end
if mass_type == foundation.enum.constant_variable.constant
annotations
% Icon = ‘mass2.svg’
end
else
annotations
% Icon = ‘mass4.svg’
end
end
else
if mass_type == foundation.enum.constant_variable.variable
annotations
% Icon = ‘mass3.svg’
end
end
end

if mass_type == foundation.enum.constant_variable.constant
annotations
mass : ExternalAccess=modify
end
equations
m == {1,’kg’};
end
else
annotations
[Mdot, T_in, m, mass_min] : ExternalAccess=modify
end
equations
assert(mass_min > 0)
end
end

variables (ExternalAccess=none)
m = {value = {1,’kg’}, priority=priority.high}; % Mass
end

variables
T = {value = {300, ‘K’}, priority = priority.high}; % Temperature
phase = {value = {0, ‘1’}, priority = priority.high}; % Phase
phaseChangeRate = {0, ‘1/s’}; % Rate of phase change
end

variables (Access=private)
Q = {0, ‘W’}; % Heat flow rate
end

branches
Q : M.Q -> *;
end

equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)

T == M.T;

if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end

if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

connections
connect(M,N)
end

end Problem:
When I adjust the latent heat, there’s no change in the temperature curve of the XPS material. I anticipate a stable temperature, ranging between 305K and 320K. So the problem is that the material does not release the absorbed heat.
equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)
T == M.T;
if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end
if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

explanation of the full code:

This code describes a thermal component that models internal energy storage in a thermal network. Here’s a breakdown of the main parts of this code:

1. **Nodes**: These are points where other components can connect. Two thermal nodes are defined: `M` (top) and `N` (bottom).

2. **Inputs**: These values can be supplied from outside. `Mdot` represents the mass flow rate (in kg/s) and `T_in` is the input temperature (in Kelvin).

3. **Parameters**: These values determine the behavior of the component. They include:
– `mass_type`: Type of mass (constant or variable).
– `mass`: The mass of the thermal component.
– `Cps` and `Cpl`: Specific heat capacity for solid and liquid, respectively.
– `Tmelt_start` and `Tmelt_end`: The temperature range where the material starts melting and stops melting.
– `L`: Specific latent heat.
– `mass_min`: Minimum mass.
– `num_ports`: The number of graphical ports.

4. **Annotations**: These are metadata that provide additional information about the component or dictate how it is displayed in a GUI. Here, it is primarily used to indicate which parameters can be modified externally and to define the component’s icon.

5. **Variables**: These represent the internal states of the component. They include:
– `m`: The mass.
– `T`: The temperature.
– `phase`: The phase (0 for solid, 1 for liquid, and values in between for a mixed phase).
– `phaseChangeRate`: The rate of phase change.
– `Q`: Heat flow rate.

6. **Branches**: These are connections between different parts of the network. Here, the heat flow `Q` from node `M` to another part of the network is defined.

7. **Equations**: These describe the mathematical relationships between the different variables and parameters. They include:
– Relationships between `T`, `Q`, `m`, and other variables, especially around phase change.
– Constraints on certain values (like that `Cps`, `Cpl`, and `T` must be positive).

8. **Connections**: These are the actual connections between the different nodes within the component. Here, node `M` is connected to node `N`.

The essence of this component is that it models a thermal mass that can store and release energy. It also accounts for phase changes, meaning it can melt or solidify within a certain temperature range.
component derdecomponent
% Thermal Mass
% This block models internal energy storage in a thermal network.

nodes
M = foundation.thermal.thermal; % :top
end

inputs(ExternalAccess = none)
Mdot = {0, ‘kg/s’}; % Mdot:bottom
T_in = {300, ‘K’}; % Tin:bottom
end

nodes(ExternalAccess = none)
N = foundation.thermal.thermal; % :bottom
end

parameters
mass_type = foundation.enum.constant_variable.constant; % Mass type
end

parameters (ExternalAccess = none)
mass = {1, ‘kg’}; % Mass
end

parameters
Cps = {200, ‘J/(kg*K)’}; % Specific heat solid
Cpl = {1000, ‘J/(kg*K)’}; % Specific heat liquid
Tmelt_start = {320, ‘K’}; % Start Melting Temperature
Tmelt_end = {305, ‘K’}; % End Melting Temperature
L = {100, ‘J/(kg)’}; % Specific Latent Heat
end

parameters (ExternalAccess = none)
mass_min = {1e-6,’kg’}; % Minimum mass
end

parameters
num_ports = foundation.enum.numPorts2.one; % Number of graphical ports
end

if num_ports == 2
annotations
N : ExternalAccess=modify
end
if mass_type == foundation.enum.constant_variable.constant
annotations
% Icon = ‘mass2.svg’
end
else
annotations
% Icon = ‘mass4.svg’
end
end
else
if mass_type == foundation.enum.constant_variable.variable
annotations
% Icon = ‘mass3.svg’
end
end
end

if mass_type == foundation.enum.constant_variable.constant
annotations
mass : ExternalAccess=modify
end
equations
m == {1,’kg’};
end
else
annotations
[Mdot, T_in, m, mass_min] : ExternalAccess=modify
end
equations
assert(mass_min > 0)
end
end

variables (ExternalAccess=none)
m = {value = {1,’kg’}, priority=priority.high}; % Mass
end

variables
T = {value = {300, ‘K’}, priority = priority.high}; % Temperature
phase = {value = {0, ‘1’}, priority = priority.high}; % Phase
phaseChangeRate = {0, ‘1/s’}; % Rate of phase change
end

variables (Access=private)
Q = {0, ‘W’}; % Heat flow rate
end

branches
Q : M.Q -> *;
end

equations
assert(Cps > 0 && Cpl > 0)
assert(T > 0, ‘Temperature must be greater than absolute zero’)

T == M.T;

if T >= Tmelt_start && T <= Tmelt_end
phaseChangeRate == {0.001, ‘1/s’};
else
phaseChangeRate == {0, ‘1/s’};
end

if phase < 1 && phase > 0
Q == m * Cps * T.der + m * L * phaseChangeRate;
phase.der == phaseChangeRate;
else
Q == m * Cpl * T.der;
phase.der == {0, ‘1/s’};
end
end

connections
connect(M,N)
end

end phasechangingmaterial, heattransfer MATLAB Answers — New Questions

​

I am compiling a file that contains a caller block, and that c caller block is calling c file that have many header files included. But while compiling its giving error Unknown "file extension ‘ ‘ ". Can anyone tell me how to solve this one?I am compiling a file that contains a caller block, and that c caller block is calling c file that have many header files included. But while compiling its giving error Unknown "file extension ‘ ‘ ". Can anyone tell me how to solve this one? I am compiling a file that contains a caller block, and that c caller block is calling c file that have many header files included. But while compiling its giving error Unknown "file extension ‘ ‘ ". Can anyone tell me how to solve this one? c caller, mex, error, unknown file MATLAB Answers — New Questions

​

I have licensing in an offline environment. One for Matlab and one for POLLSPACE. I’m looking to license them both on the same server (since both licenses have that MAC:ID tied to them). I’m running into the fact that I can’t run two separate MLM.exe’s on the same FLEXNet license manager. So my thought was I could combine the licensing that is for the same server ID, for the two products. But I seem to be running into and issue that I don’t know how to make it so both products are working and on separate ports.
Is there a way either in options file or something similar to be able to take two valid licenses and have the products be listening on two separate ports?

Thanks!I have licensing in an offline environment. One for Matlab and one for POLLSPACE. I’m looking to license them both on the same server (since both licenses have that MAC:ID tied to them). I’m running into the fact that I can’t run two separate MLM.exe’s on the same FLEXNet license manager. So my thought was I could combine the licensing that is for the same server ID, for the two products. But I seem to be running into and issue that I don’t know how to make it so both products are working and on separate ports.
Is there a way either in options file or something similar to be able to take two valid licenses and have the products be listening on two separate ports?

Thanks! I have licensing in an offline environment. One for Matlab and one for POLLSPACE. I’m looking to license them both on the same server (since both licenses have that MAC:ID tied to them). I’m running into the fact that I can’t run two separate MLM.exe’s on the same FLEXNet license manager. So my thought was I could combine the licensing that is for the same server ID, for the two products. But I seem to be running into and issue that I don’t know how to make it so both products are working and on separate ports.
Is there a way either in options file or something similar to be able to take two valid licenses and have the products be listening on two separate ports?

Thanks! license, licensemanager MATLAB Answers — New Questions

​

Hello,
I’m using Simulink and Stateflow to produce a MISRA SLSF and MISRA C compliant model, to produce an AUTOSAR SwC with Embedded Coder.

I’m using bus signals into models in different points as they are really useful for my intended implementation.

One of the required rules by MISRA SLSF is the 036. The statement "A" of this rule suggest not to use Bus inputs with Stateflow, since buses are used in Simulink to package signals together often with different types. Each data in Stateflow must have a unique type definition.

My questions are:
– Is this rule still valid with R2018a?
– Is there a correlated check into Model Advisor for this rule?
– Is there a way to use buses and respect this rule?

Thanks in advanceHello,
I’m using Simulink and Stateflow to produce a MISRA SLSF and MISRA C compliant model, to produce an AUTOSAR SwC with Embedded Coder.

I’m using bus signals into models in different points as they are really useful for my intended implementation.

One of the required rules by MISRA SLSF is the 036. The statement "A" of this rule suggest not to use Bus inputs with Stateflow, since buses are used in Simulink to package signals together often with different types. Each data in Stateflow must have a unique type definition.

My questions are:
– Is this rule still valid with R2018a?
– Is there a correlated check into Model Advisor for this rule?
– Is there a way to use buses and respect this rule?

Thanks in advance Hello,
I’m using Simulink and Stateflow to produce a MISRA SLSF and MISRA C compliant model, to produce an AUTOSAR SwC with Embedded Coder.

I’m using bus signals into models in different points as they are really useful for my intended implementation.

One of the required rules by MISRA SLSF is the 036. The statement "A" of this rule suggest not to use Bus inputs with Stateflow, since buses are used in Simulink to package signals together often with different types. Each data in Stateflow must have a unique type definition.

My questions are:
– Is this rule still valid with R2018a?
– Is there a correlated check into Model Advisor for this rule?
– Is there a way to use buses and respect this rule?

Thanks in advance stateflow, misra MATLAB Answers — New Questions

​