Changes

==Description==

==Description==

This function gives the  changing the one unit system to other unit system.  

This function gives the  changing the one unit system to other unit system.  

Example:To change the length in kilometer unit to standard unit meter, Here N is the value to which we want to covert from FU to TU.  Also FU and TU will accept any units which we need to give in <math>" "</math>(double quotes).</br>

Example:To change the length in kilometer unit to standard unit meter, Here N is the value to which we want to covert from FU to TU.  Also FU and TU will accept any units which we need to give in <math>" "</math>(double quotes).<\br>

This function show the result as Error:

This function show the result as Error:

#when the input value are incorrect

#when the input value are incorrect