# Video Tutorials - Calculations

## Tecplot 360 Basics – Equations

Equations in Tecplot 360 covers referencing variables, math syntax & functions, IF conditions, operating on subsets of zones, use of I & J special values, and referencing zones. […]

## Computing Iso-volumes Using Value Blanking

In this video, we will show you how to use Tecplot 360 to create an iso-volume based on two variables and to compute its volume as a quantitative measure. […]

## Calculating Mass Flow Rate

A CONVERGE dataset is loaded into Tecplot 360 to demonstrate how to compute the mass flow rate through the exhaust port of an internal combustion engine. […]

## Tecplot 360 Basics: Data Alter

This quick tutorial about Data Alter covers the Specify Equations Syntax in Tecplot 360. We will be calculating a commonly desired variable which is often not included in exported data sets: velocity magnitude. […]

## Comparing Grids: Interpolation of Differing Meshes

This is the third video in the Comparing Grids tutorial series where we compare two data sets with differing meshes. […]

## FEA Series Part 3: Extracting Maximum Stress Using Macros

In this video, we will be extracting maximum stress using macros to calculate the von Mises stress over time. […]

## FEA Series Part 2: Data Alter Using IF Conditions

In this video we will be analyzing a connecting rod data set to find a stress threshold using an IF condition. […]

## Calculate Q-Criterion with Tecplot 360

In this video we’ll show you how to calculate Q-Criterion, plot the results, and compare the performance of Plot3D and SZL file formats for this work. […]

## Comparing Grids in Tecplot 360

In this video, we will show how to compare different data sets of similar grids using Tecplot 360. […]