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// determine mach number
clc
Z=10000 // altitude meter
T=223.3 // temperature in kelvin
k=1.4 // constant of
R=287 // constant
d=800*1000 // speed of aircraft flies
c1=3600 // minutes and second
c=sqrt(k*T*R)
mprintf('\n velocity of sound C = %f m/s',c)
v=d/c1
mprintf('\n speed of aircraft V = %f m/s',v)
M=v/c
mprintf('\n Mach number M =V/C = %f ',M)
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