I'm getting the error "terminate statement with semicolon to suppress output" but I haven't used any functions.

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nisha s 2019-4-25

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评论： Rik 2020-2-27

The code was previously displaying the graphs properly but it stopped displaying that too all of a sudden. It also shows the error "terminate statement with semicolon to suppress output".

% GIVEN DATA:
v=400;              %Rated voltage
p=250000;           %Power
pole=4;             
rs=0.032;           
rr=0.02;            
ls=0.0003183;       
lr=0.00047428;      
lm=0.0174;          
f=50;               %frequency          
%  TORQUE SLIP CHARACTERISTICS
hold on
wms=(4.*pi.*f)./pole
xnet=2.*pi.*f.*(ls+lr)
z = sqrt( (rs+(rr./x)).^2 + (xnet.^2))
y = 3 .* (v./z).^2 .* rr ./ (x.*wms)  %k=1 
xlim([0 1])
plot(x,y)
wms=(4.*pi.*f)./pole
xnet=2.*pi.*f.*(ls+lr)
z = sqrt( (rs+(rr./x)).^2 + 25.*(xnet.^2))
y = -3 .* (v./z).^2 .* rr ./ (x.*wms.*25)  %k=5 
plot(x,y)
wms=(4.*pi.*f)./pole
xnet=2.*pi.*f.*(ls+lr)
z = sqrt( (rs+(rr./x)).^2 + 49.*(xnet.^2))
y = 3 .* (v./z).^2 .* rr ./ (x.*wms.*49)  %k=7
yyaxis right
plot(x,y)
hold off
% SPEED TORQUE CHARATCERISTICS
figure(2) 
hold on 
wms=(4.*pi.*f)./pole
xnet=2.*pi.*f.*(ls+lr)
s = (wms - x) ./ wms
z = sqrt( (rs+(rr./s)).^2 + (xnet.^2))
y = 3 .* (v./z).^2 .* rr ./ (s.*wms)  %k=1 
ylim([0 10000])
xlim([0 20])
plot(x,y)
hold off

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Walter Roberson 2019-4-25

Did you happen to switch from using LiveScript to using a regular script ?

Adam Danz 2019-4-25

编辑：Adam Danz 2019-4-25

在 MATLAB Online 中打开

I updated my answer to address the empty plots. You haven't provided a value for 'x' as Rik pointed out. When I used

x = 0 : 0.01: 5;

your plots produces lines.

I haven't looked into the code any further.

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回答（2 个）

Ivan Gonzalez Bustos 2020-2-27

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Adam Danz 2020-2-27

Rik 2020-2-27

Totally off topic of course, but still worthy of an upvote

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Adam Danz 2019-4-25

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编辑：Adam Danz 2019-4-25

在 MATLAB Online 中打开

Your sample code does not provide a value for x. When x is a vector (x = 0 : .01 : 5), your plot produce lines.

As for the semicolon warning, there are lots of lines in your code that do not end with ";" and many of those lines produce outputs to your command window. This is typically sloppy which is why Matlab is warning you. To fix it, just add the semicolon (;) to the end of those lines.

% GIVEN DATA:
v=400;              %Rated voltage
p=250000;           %Power
pole=4;             
rs=0.032;           
rr=0.02;            
ls=0.0003183;       
lr=0.00047428;      
lm=0.0174;          
f=50;               %frequency          
%  TORQUE SLIP CHARACTERISTICS
hold on
wms=(4.*pi.*f)./pole                                    % <--HERE
xnet=2.*pi.*f.*(ls+lr)                                  % <--HERE
z = sqrt( (rs+(rr./x)).^2 + (xnet.^2))                  % <--HERE
y = 3 .* (v./z).^2 .* rr ./ (x.*wms)  %k=1              % <--HERE
xlim([0 1])
plot(x,y)
wms=(4.*pi.*f)./pole                                    % <--HERE
xnet=2.*pi.*f.*(ls+lr)                                  % <--HERE
z = sqrt( (rs+(rr./x)).^2 + 25.*(xnet.^2))              % <--HERE
y = -3 .* (v./z).^2 .* rr ./ (x.*wms.*25)  %k=5         % <--HERE
plot(x,y)
wms=(4.*pi.*f)./pole                                    % <--HERE
xnet=2.*pi.*f.*(ls+lr)                                  % <--HERE
z = sqrt( (rs+(rr./x)).^2 + 49.*(xnet.^2))              % <--HERE
y = 3 .* (v./z).^2 .* rr ./ (x.*wms.*49)  %k=7          % <--HERE
% You get the picture......