What is wrong with this code?

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jake carl
jake carl 2020-7-9
编辑： madhan ravi 2020-7-10
What is wrong with this code?
clc;
clear all;
close all;
n1=1;n2=25; den = [1 6 25];
step =[n1,den];
title('Transfer function when numerator = 1')
figure, step=[n2,den];
title('Standard transfer function')
  1 个评论
madhan ravi
madhan ravi 2020-7-10
Original question:
What is wrong with this code?
clc;
clear all;
close all;
n1=1;n2=25; den = [1 6 25];
step =[n1,den];
title('Transfer function when numerator = 1')
figure, step=[n2,den];
title('Standard transfer function')

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回答（1 个）

madhan ravi
madhan ravi 2020-7-9
clear all % never name a variable step
n1=1;
n2=25;
den = [1 6 25];
Tf =tf(n1,den);
figure(1)
step(Tf)
title('Transfer function when numerator = 1')
figure(2), Tf1=tf(n2,den);
step(Tf1)
title('Standard transfer function')
  4 个评论
显示 2更早的评论
jake carl
jake carl 2020-7-10
Error in Untitled35 (line 5)
Tf =tf(n1,den);
it is like this
madhan ravi
madhan ravi 2020-7-10
编辑：madhan ravi 2020-7-10
Nope , that’s not the entire error message. Either you do don’t Control System Toolbox or a valid license for it or you created a file named tf.m if so remove it from the path or rename it.

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