diff --git a/sampleApp.m b/sampleApp.m
index 03b9bab..919b612 100644
--- a/sampleApp.m
+++ b/sampleApp.m
@@ -1,8 +1,21 @@
-%% This function was automatically generated. When modifying its signature, take care to apply
-%% modifications also to the descriptor files in the repository.
+%% -----------------
+%% Copyright © 2022 ACK Cyfronet AGH, Poland.
+%% -----------------
+%%
+%% Sample function created for demonstration of creating custom applications functionality
+%% See also https://docs.cyfronet.pl/display/ISDOC/Creating+Custom+Applications
+%%
 function sampleApp(inVector)
 
-%% MATLABSAMPLEAPP1
-%% TODO: Put your application code here
+%% sampleApp function that multiplies a vector of number values by a multiplicator and plots the result
+%
+% Inputs:
+%   - inVector - vector of double number values
+%
+% Outputs:
+%   - PNG image file 'vectorPlot.png' containing a plot of the inVector multiplied by multiplicator
+%
+    plot(inVector);
+    print('-dpng', 'vectorPlot.png');
 
 end