How to find the roots of equations in Matlab v7.12

3 vues (au cours des 30 derniers jours)
MissA
MissA le 12 Déc 2012
how can I find roots for equation x^3=a
where a is a defined variable = 0.3 (a=0.3) and '^' means 'power'
Please help
thanks MissA

Réponses (2)

Muruganandham Subramanian
Muruganandham Subramanian le 12 Déc 2012
Modifié(e) : Muruganandham Subramanian le 12 Déc 2012
try this:
a=0.3;
x=nthroot(a,(-1/3));
for more info,
>>help nthroot

Walter Roberson
Walter Roberson le 12 Déc 2012
roots([1 0 0 -a])

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