... 3.14. In Properties, name the id for each item according to IDFILEOPEN for Open, IDFILESAVE for Save, ID GENERATE for Generate, ID CLEAR for Clear,and IDEXIT for Exit.KDO/KEHJWDD068-Salleh-CH-05 ... triangular form before applying backward sub-stitutions for the solution. The LU factorization technique factorizes the coefficientmatrix as a product of its upper and lower triangular matrices before ... text file stores data as strings only.Therefore, all data from other types, for example integer and double, will haveto be formatted into strings. For example,int x=3;double y=6.5;fprintf(ofp,"x...