Solve Symbolic Simultaneous equations -- Please help!!
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
I am attempting the following code to solve for a,b,c, and d. i keep getting an error saying a does not exist, what i am looking for is a solution for a b c d in terms of n and t
clear all; close all; clc;
syms a b c n t d
eqns = [ a + b + c + d == 0, a*(n^3)+ b*(n^2)+ c*n+ d == t, 3*a*(n^2)+ 2*b*n +c == 0];
S = solve(eqns);
S.a
S.b
S.c
S.d
the error i get is
Reference to non-existent field 'a'.
Error in Untitled (line 7)
S.a
1 Kommentar
Antworten (2)
Manvi Goel
am 29 Okt. 2020
You will require four equations to calculate values of four unknowns. You only have 3 here.
a + b + c + d == 0, (1)
a*(n^3)+ b*(n^2)+ c*n+ d == t, (2)
3*a*(n^2)+ 2*b*n +c == 0, (3)
0 Kommentare
Siehe auch
Kategorien
Mehr zu Conversion Between Symbolic and Numeric 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!