Summation operator

Hello.

I don't quite get the way hte summation operator works in my particular example here.

Why do I get different values? What do I do wrong here?

Best regards,

Sergey

Best answer by Fred_Kohlhepp

Have to understand how vectors are treated.

Fixed and (I hope) explained.

Answer

23-Emerald I

Have to understand how vectors are treated.

Fixed and (I hope) explained.

Author

15-Moonstone

Thank you, Fred.

I appreciate help and your note about vectors.

Best regards,

Sergey

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