acosd returns a complex number

2 vues (au cours des 30 derniers jours)

Diana Dawoud le 13 Nov 2020

Modifié(e) : Stephen23 le 13 Nov 2020

I'm trying to find acosd(15/9) in matalb but i'm getting 0.0000 +62.9458i, what dose that mean?

Stephen23 le 13 Nov 2020

Modifié(e) : Stephen23 le 13 Nov 2020

"I'm trying to find acosd(15/9) in matalb but i'm getting 0.0000 +62.9458i, what dose that mean?"

15/9
ans = 1.6667

What do you expect the arccosine to be for this value? Or, for that matter, for any value >1 ?

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