function y = equation(x)
syms f z
f=3*z^5-z^3+8*z-3
y=subs(f,x)
end
why is not working?
syms requires the Symbolic Math Toolbox, which is not available on Cody.
Test | Status | Code Input and Output |
---|---|---|
1 | Fail |
%%
x = 1;
y_correct = 7;
assert(isequal(equation(x),y_correct))
Error: Undefined function 'syms' for input arguments of type 'char'.
|
2 | Fail |
%%
x = 5;
y_correct = 9287;
assert(isequal(equation(x),y_correct))
Error: Undefined function 'syms' for input arguments of type 'char'.
|
3 | Fail |
%%
x = 0;
y_correct = -3;
assert(isequal(equation(x),y_correct))
Error: Undefined function 'syms' for input arguments of type 'char'.
|
4 | Fail |
%%
x = -3;
y_correct = -729;
assert(isequal(equation(x),y_correct))
Error: Undefined function 'syms' for input arguments of type 'char'.
|
5 | Fail |
%%
x = -sqrt(-1);
y_correct = -3 - 12*sqrt(-1);
assert(isequal(equation(x),y_correct))
Error: Undefined function 'syms' for input arguments of type 'char'.
|
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