I am trying to get my answer to Display but it wont let me

syms f(x)

f(x) = (x^3) - (7*x) + 6;

x=solve(f(x)==0,x);

disp('the roots will be',(x))

says error below-

Incorrect number or types of inputs or outputs for function extractCreationTimeDigits.

Error in sym/disp (line 16)

useDigits = extractCreationTimeDigits(X);

Error in Workshop_5_Excercise_3_Pt_1 (line 4)

disp('the roots will be',(x))

>>

[Stephen23]

DISP has only one input argument.

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x);
disp(x)

Answer 1

[Dyuman Joshi]

The function disp accepts only 1 input argument.

If you want to display the roots and the text in the same line, you will have to create a string before using disp, see this example for reference - https://in.mathworks.com/help/matlab/ref/disp.html#btnoykw-1

If you want to display them seperately, you can call disp() twice like this -

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x)

x = 

disp('the roots will be')

the roots will be

disp(x)

Answer 2

[Christopher McCausland]

Hi Bastian,

Try replacing

disp('the roots will be',(x))

with

fprintf('the roots will be %d. \n',x)

This should correct the string formating and print as desired.

Christopher

Answer 3

[Star Strider]

Another option —

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x);
disp(["the roots will be ",string(x.')])

    "the roots will be "    "-3"    "1"    "2"

Note the use of string arrays and the simple transpose, .' operator.

.

Answer 4

[Voss]

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x);

str = sprintf('%s ',x);
str(end) = [];
fprintf('the roots will be [%s]\n',str)

the roots will be [-3 1 2]

Answer 5

[Voss]

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x);

fprintf('the roots will be [%s]\n',strjoin(string(x)))

the roots will be [-3 1 2]

Answer 6

[Voss]

syms f(x)
f(x) = (x^3) - (7*x) + 6;
x=solve(f(x)==0,x);

fprintf('the roots will be [%s]\n',join(string(x)))

the roots will be [-3 1 2]