If I have a equation, suppose x.^2+y.^3-10 ; if I put the values of x and y randomly, Can I find the zeroes of this equation at certain values of x and y ? for example x=3 and y=1, there is zero.
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Mahak SINGH CHAUHAN
am 11 Mär. 2014
Bearbeitet: Mahak SINGH CHAUHAN
am 27 Sep. 2019
If I have a equation, suppose x.^2+y.^3-10 ; if I put the values of x and y randomly, Can I find the zeroes of this equation at certain values of x and y ? for example x=3 and y=1, there is zero. Please help me..
0 Kommentare
Akzeptierte Antwort
Weitere Antworten (1)
Matt J
am 11 Mär. 2014
Bearbeitet: Matt J
am 11 Mär. 2014
Given a fixed value of x, you can find one corresponding y at which the expression is zero as follows
x=3;
f=@(y) x.^2+y.^3-10;
y_zero = fzero(f, y_guess);
Although, when f() is a polynomial, as in your example, it would be more efficient to use ROOTS instead of FZERO. Also, ROOTS will find you all solutions y for that x, instead of just one.
Similarly for given y, you can find one associated x as follows
y=1;
f=@(x) x.^2+y.^3-10;
x_zero = fzero(f, x_guess);
Siehe auch
Kategorien
Mehr zu Spline Postprocessing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!