Teach me buffer, please.

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I am confused and will appreciate if you could help me understand buffer.
Buffer[] is an array...correct me if I'm wrong.
Then, Buffer[5] is the 6th index in the Buffer[], or, is it an array called Buffer[] with 5 things inside?

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Hello kikokiko

Please look here for specific arrays knowledge.

The complete reference https://book.mql4.com// is also important for learning...

Best

[Alexander]

When you define buffer:

int Buffer[5]; - it means "Buffer[] with 5 things inside",

but in the code:

Buffer[5]=x; - it means "the 6th index in the Buffer[]".

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Thank you fbj, and thank you very much Roger!