Expanding a function in Matlab
14 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Teoman Selcuk
am 14 Nov. 2021
Kommentiert: John D'Errico
am 14 Nov. 2021
I ma trying to writea code that expands the function (a + b).^2 into the expected output. Instead it gives the Output below. How would i be able to get to the Expected Output?
>> a = 'a';
>> b= 'b';
>> func = multip = (a + b).^2
Expected Output:
a^2+2ab+b^2
Output:
7414875
0 Kommentare
Akzeptierte Antwort
DGM
am 14 Nov. 2021
Using symbolic tools:
syms a b
f = expand((a+b)^2)
Your approach would ostensibly return a number because you're treating characters as numbers.
double('a')
double('b')
(97+98)^2
As to why exactly that number is different than what you got, I have no idea. The code you posted shouldn't do anything but throw an error.
1 Kommentar
John D'Errico
am 14 Nov. 2021
I assume you are saying that what would throw an error is the line with func. Of course that is invalid MATLAB syntax.
a = 'a';
b = 'b';
func = multip = (a + b).^2
I note that
sqrt(7414875)
ans =
2723.02680853494
is not even an exact integer, but it is also far too large to be the sum of two standard ascii equivalents. So I have no immediate idea what was actually stored in those variables.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Logical finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!