Question

I need to write a matlab code that solve this system of equations:

x = 0.768(110-z)

x = 1.344(y-40)

x = (75*(1-0.004*t))*0.008522185*(((110-y)-(z-40))/ln((110-y)/(z-40)))

for t from 100 to 250 with 1000 increment!

Note that ln is natural log, I don't know what it should be in matlab!

Answer 1

HI,

t SHOULD BE SINGLE VALUE.THIS SHOULD NOT BE ARRAY. FOR THREE UNKNOWNS THREE EQUATIONS ARE SUFFICIENT.

close all
clear all
clc

syms x y z

t = linspace(100,250,1000);
eqn1 = x == 0.768 * (110-z);
eqn2 = x == 1.344 * (y-40);
eqn3 = x == (75*(1-0.004*t)) * 0.008522185 * (((110-y)-(z-40))/log((110-y)/(z-40)));

[A,B] = equationsToMatrix([eqn1, eqn2, eqn3], [x, y, z]);

X = linsolve(A,B)

x = X(1,1)
y = X(2,1)
z = X(3,1)

I HAVE WRITTEN CODE AND TOOK t ARRAY AND IT'S NOT SOLVABLE.

PLEASE UPDATE THE QUESTION AND LET ME KNOW FOR ANY PROBLEM IN COMMENT SECTION