Solve : errors in numerical method!!?

1.	Solve : errors in numerical method!!?
Answer» can anyone briefly explain me the concept of truncation error,human error,rounding error/machine error and processing error in numerical method.Homework?no its not homework i need to clear my concept.if possible can you explain .actually i have BIT diffficulty in rounding error and procecessing error.i have find details about truncation error.Truncation is to just cut off. A process error can mean the wrong method was used. A rounding error comes when rounding off reduces the accuracy of numerical data. This is not easy to PREDICT, so in financial CALCULATIONS numbers may be stored with more precision that what is needed for a report.THANKYOU SO MUCH ,MAY GOD BLESS YOU.

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