diff --git a/CROSS-OPT-1.0/TrussMass.m b/CROSS-OPT-1.0/TrussMass.m
deleted file mode 100644
index ac37de0..0000000
--- a/CROSS-OPT-1.0/TrussMass.m
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-% -----------------------------------------------------------------
-%  TrussMass.m
-% -----------------------------------------------------------------
-%  programmers: Marcos Vinicius Issa
-%               Anderson Pereira
-%               Americo Cunha Jr
-%
-%  Originally programmed in: Apr 04, 2024
-%           Last updated in: Aug 23, 2024
-% -----------------------------------------------------------------
-%  This function computes the mass of a truss structure.
-% -----------------------------------------------------------------
-function F = TrussMass(A,MyTruss)
-
-    % truss structure parameters
-    rho       = MyTruss.rho;
-    NODES     = MyTruss.NODES;
-    ELEM      = MyTruss.ELEM;
-    Nelem     = MyTruss.Nelem;
-    
-    % compute the mass
-    F = 0.0;
-    for e = 1:Nelem
-        dx = NODES(ELEM(e,2),1) - NODES(ELEM(e,1),1);
-        dy = NODES(ELEM(e,2),2) - NODES(ELEM(e,1),2);
-        l  = sqrt(dx^2+dy^2);
-        F  = F + rho*A(e)*l;
-    end
-end
-% -----------------------------------------------------------------
\ No newline at end of file