clc clear //Input data r1=6;//Initial compression ratio r2=7;//Final compression ratio r=1.4;//Isentropic coefficient of air //Calculations nr1=(1-(1/r1)^(r-1))*100;//Otto cycle efficiency when compression ratio is 6 in percentage nr2=(1-(1/r2)^(r-1))*100;//Otto cycle efficiency when compression ratio is 7 in percentage n=nr2-nr1;//Increase in efficiency in percentage //Output printf('The increase in efficiency due to change in compression ratio from 6 to 7 is %3.1fpercent',n)