Question

using MATLAB solve for T3 if ALL other variable are known heat(1) == (m/M)*(((A-R)*(T3-T2))+((B/2)*(T3^2-T2^2))+((C/3)*(T3^3-T2^3))+((D/4)*(T3^4-T2^4))))

using MATLAB solve for T3 if ALL other variable are known

heat(1) == (m/M)*(((A-R)*(T3-T2))+((B/2)*(T3^2-T2^2))+((C/3)*(T3^3-T2^3))+((D/4)*(T3^4-T2^4))))

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Answer #1

clc
clear
syms T3
m=2;M=3; A=5;R=7;B=90;T2=0;C=7;D=3;heat(1)=1000;
eqn=(m/M)*(((A-R)*(T3-T2))+((B/2)*(T3^2-T2^2))+...
((C/3)*(T3^3-T2^3))+((D/4)*(T3^4-T2^4)))==heat(1);
sol=double(solve(eqn,T3));

Result

sol =

-5.2737 + 0.0000i
4.5930 + 0.0000i
-1.2152 - 9.0051i
-1.2152 + 9.0051i

NOTE: To run the code, random value of jnown variables is assumed. You can change this value in program to get required result

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using MATLAB solve for T3 if ALL other variable are known heat(1) == (m/M)*(((A-R)*(T3-T2))+((B/2)*(T3^2-T2^2))+((C/3)*(T3^3-T2^3))+((D/4)*(T3^4-T2^4))))
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