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+<h1><div align=”center”><b>SubTopic: Total Differential</b></h1></div>
+<br/></br>
+
+<tab>file1_Visualization_of_dz
+
+![file1_Visualization_of_dz](https://github.com/vnb09/FSF-mathematics-python-code-archive/blob/fsf_tasks/FSF-2020/calculus-of-several-variables/approximations-and-optimizations/Total-Differential/file1_Visualization_of_dz.gif?raw=true)
+<br/></br>
+<br/></br>
+
+<tab>file2_Differentials
+ 
+![file2_Differentials](https://github.com/vnb09/FSF-mathematics-python-code-archive/blob/fsf_tasks/FSF-2020/calculus-of-several-variables/approximations-and-optimizations/Total-Differential/file2_Differentials.gif?raw=true)
+
+<br/></br>
+<br/></br>
+
+<tab>file3_Total_differential_of_z
+ 
+![file3_Total_differential_of_z](https://github.com/vnb09/FSF-mathematics-python-code-archive/blob/fsf_tasks/FSF-2020/calculus-of-several-variables/approximations-and-optimizations/Total-Differential/file3_Total_differential_of_z.gif?raw=true)
+<br/></br>
+<br/></br>
+
+<tab>file4_total_differential_change
+ 
+![file4_total_differential_change](https://github.com/vnb09/FSF-mathematics-python-code-archive/blob/fsf_tasks/FSF-2020/calculus-of-several-variables/approximations-and-optimizations/Total-Differential/file4_total_differential_change.gif?raw=true)
+<br/></br>
+<br/></br>
+
+<tab>file5_Total_differential_approximation
+ 
+ ![file5_Total_differential_approximation](https://github.com/vnb09/FSF-mathematics-python-code-archive/blob/fsf_tasks/FSF-2020/calculus-of-several-variables/approximations-and-optimizations/Total-Differential/file5_Total_differential_approximation.gif?raw=true)
+
+<br/></br>
+<br/></br>