The graph shows a phase diagram for Lead$-$Tin solder. The most common alloy available

commercially is $60\%$ Tin and $40\%$ Lead, although eutectic solder is available $(63\%Sn,37\%$

$Pb.$ In this and the following questions, prepare a function to classify the phase of a $Sn-Pb$

solder and should accept two inputs: TEMP, Temperature in degrees C$,$ and PERCSN, Percent

Tin. The function should return a text string that identifies one of four possible phases:

Liquid, Solid, Mixture, Eutectic Point. If a combination of inputs results in an outcome falling

directly on a line, the classification should be to the region below $($lower temperature$).$ The

equation to define the lines must be done using Polyfit. Finally, the program shoudl produce

a formatted output statement in the command window similar to$,"$ For XX$\%$ Tin at YY

Degrees Celsius, the phase is PHASE,", where XX$,$ YY$,$ and PHASE are replaced by actual

values from the code. The partial code below is designed to implement the function. You are

to fill in the missing code to make the function work.Q: $,\%$ Declaration of function and passed parameters.

$\%$ set parameters for Mixture $/$ Liquid line when Tin

Tin$1=[Q2]$;

Temp$1=[Q3]$:

LoSn $=$ polyfit$($Q$4)$;

TempLoSn $=$ Q$5\%$ Temperature on the LoSn Line at a given percent Tin.

$\%$ set parameters for Mixture $/$ Liquid line when Tin $>63\%$

Tin$2=[Q6]$;

Temp$2=[Q7]$;

HiSn $=$ polyfit$($Q$8)$;

TempHiSn $=$ Q$9$; $\%$ Temperature on HiSn line at a given percent Tin

if Q$10\%$ Insert appropriate if statement here

PHASE $=$ 'Eutectic Point';

elseif Q$11\%$ Is it a solid?

Q$12\%$ Add appropriate code here

elseif PERCSN $63$&& Q$13\%$ Complete the logical question

PHASE $=$ 'Liquid';

elseif Q$14\%$ Appropriate logical question here

PHASE $=$ 'Liquid';

Q$15\%$ First of two statements to close out the $"$If$"$ statement

Q$16\%$ Second of two statements to close out the $"$if$"$ statement

end

fprintf$($Q$17)\%$ Add appropriate code here