Diferença 1ª ordem
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Δ
About this calculator
The first-order difference calculator is a useful tool for statisticians and data analysts working with time series.
It calculates the difference between two consecutive values of a time series, following the simple formula: Δxₜ = xₜ − xₜ₋₁.
This calculator is particularly useful when you need to identify patterns and trends in time series data, such as sales predictions or temperature analyses.
Remember that the first-order difference is just one of many methods for analyzing time series and should be used in conjunction with other methods to gain more comprehensive insights.
Frequently asked questions
What is the first-order difference?
The first-order difference is a measure that calculates the variation between two consecutive values in a time series.
When to use the first-order difference calculator?
Use this calculator when you need to analyze patterns and trends in time series data, such as sales predictions or temperature analyses.
How does the formula work?
The simple formula for the first-order difference is Δxₜ = xₜ − xₜ₋₁, where xₜ is the current value and xₜ₋₁ is the previous value.
What is important to consider when using this calculator?
Remember that the first-order difference is just one of many methods for analyzing time series and should be used in conjunction with other methods to gain more comprehensive insights.