Package: scilab
Version: 5.5.2-2
Severity: grave
Tags: upstream
Justification: renders package unusable
Dear Maintainer,
* What led up to the situation?
I developed matrix script with scilab. I have some crash of it with sample
function det() and inv() for matrix upper than 3 column. My matrix has 12 line
and 12 column.
I tried my script with scilab on windows environment, these functions were run.
* What exactly did you do (or not do) that was effective (or
ineffective)?
-- begin of script----
clear
a=4;
b=3;
x1=-a;
y1=-b;
//u11, v11, u12, v12, u22, v22, u21, v21,
Elm1=1/(4*a*b)*[-(b-y1) 0 +(b-y1) 0 (b+y1) 0 -(b+y1) 0; 0 -(a-x1) 0 -(a+x1) 0
(a+x1) 0 (a-x1); -(a-x1) -(b-y1) -(a+x1) (b-y1) (a+x1) (b+y1) (a-x1) -(b+y1)]
x2=-3*a;
y2=-3*b;
//u12, v12, u13, v13, u23, v23, u22, v22,
Elm2=1/(4*a*b)*[-(b-y2) 0 +(b-y2) 0 (b+y2) 0 -(b+y2) 0; 0 -(a-x2) 0 -(a+x2) 0
(a+x2) 0 (a-x2); -(a-x2) -(b-y2) -(a+x2) (b-y2) (a+x2) (b+y2) (a-x2) -(b+y2)]
//u11, v11, u12, v12, u22, v22, u21, v21,
//u12, v12, u13, v13, u23, v23, u22, v22,
//u11, v11, u12, v12, u22, v22, u21, v21, u13, v13, u23, v23,
//B=1/(4*a*b)*[-(b-y1) 0 (b-y1)-(b-y2) 0+0 (b+y1)-(b+y2) 0+0 -(b+y1) 0 +(b-y2)
0 (b+y2) 0 ;
// 0 -(a-x1) 0+0 -(a-x2)-(a+x1) 0+0 (a-x2)+(a+x1) 0 (a-x1) 0 -(a+x2)
0 (a+x2);
// -(a-x1) -(b-y1) -(a+x1)-(a-x2) -(b-y2)+(b-y1) (a+x1)+(a-x2)
-(b+y2)+(b+y1) (a-x1) -(b+y1) -(a+x2) (b-y2) (a+x2) (b+y2)]
//B_inv=B'
//u11, v11, u12, v12, u22, v22, u21, v21, u13, v13, u23, v23,
//Mat_B=[Elm1_u11 Elm1_v11 Elm1_u12+Elm2_u12 Elm1_v12+Elm2_v12
Elm1_u22+Elm2_u22 Elm1_v22+Elm2_v22 Elm1_u21 Elm1_v21 Elm2_u13 Elm2_v13
Elm2_u23 Elm2_v23]
E=200000
nu=0.33
M_E=E/((1+nu)*(1-2*nu))*[(1-nu) nu 0; nu (1-nu) 0; 0 0 (1-2*nu)/2]
K_1=Elm1'*M_E*Elm1
K_2=Elm2'*M_E*Elm2
//both system of equation
//block element 1
block_1_a=[K_1(1,1) K_1(1,2);K_1(2,1) K_1(2,2)];
block_1_b=[K_1(1,3) K_1(1,4);K_1(2,3) K_1(2,4)];
block_1_c=[K_1(1,5) K_1(1,6);K_1(2,5) K_1(2,6)];
block_1_d=[K_1(1,7) K_1(1,8);K_1(2,7) K_1(2,8)];
block_1_e=[K_1(3,3) K_1(3,4);K_1(4,3) K_1(4,4)];
block_1_f=[K_1(3,5) K_1(3,6);K_1(4,5) K_1(4,6)];
block_1_g=[K_1(3,7) K_1(3,8);K_1(3,7) K_1(3,8)];
block_1_h=[K_1(5,5) K_1(5,6);K_1(6,5) K_1(6,6)];
block_1_i=[K_1(5,7) K_1(5,8);K_1(6,7) K_1(6,8)];
block_1_j=[K_1(7,7) K_1(7,8);K_1(8,7) K_1(8,8)];
//block element 1
block_2_a=[K_2(1,1) K_2(1,2);K_2(2,1) K_2(2,2)];
block_2_b=[K_2(1,3) K_2(1,4);K_2(2,3) K_2(2,4)];
block_2_c=[K_2(1,5) K_2(1,6);K_2(2,5) K_2(2,6)];
block_2_d=[K_2(1,7) K_2(1,8);K_2(2,7) K_2(2,8)];
block_2_e=[K_2(3,3) K_2(3,4);K_2(4,3) K_2(4,4)];
block_2_f=[K_2(3,5) K_2(3,6);K_2(4,5) K_2(4,6)];
block_2_g=[K_2(3,7) K_2(3,8);K_2(3,7) K_2(3,8)];
block_2_h=[K_2(5,5) K_2(5,6);K_2(6,5) K_2(6,6)];
block_2_i=[K_2(5,7) K_2(5,8);K_2(6,7) K_2(6,8)];
block_2_j=[K_2(7,7) K_2(7,8);K_2(8,7) K_2(8,8)];
//neutre
Neutral=[0 0;0 0];
//both matrice
K=[ block_1_a block_1_b Neutral block_1_d block_1_c
Neutral;
block_1_b' block_1_e+block_2_a block_2_b block_1_g
block_1_f+block_2_d block_2_c
Neutral block_2_b' block_2_e Neutral block_2_g
block_2_f;
block_1_d' block_1_g' Neutral block_1_j block_1_i
Neutral;
block_1_c' block_1_f'+block_2_d' block_2_g' block_1_i'
block_1_h+block_2_j block_2_i;
Neutral block_2_c' block_2_f' Neutral block_2_i'
block_2_h']
M_k_d=bdiag(K)
det(K)
inv(K)
--end of script
* What was the outcome of this action?
Normal return until M_k_d=bdiag(K) line.
After the scilab -> "Segmentation fault"
* What outcome did you expect instead?
The line det(K) -> value
the matrix was reversible because the matrix is diagonal.
-- System Information:
Debian Release: stretch/sid
APT prefers testing-updates
APT policy: (500, 'testing-updates'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.3.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages scilab depends on:
ii scilab-cli 5.5.2-2
ii scilab-full-bin 5.5.2-2+b1
Versions of packages scilab recommends:
ii scilab-doc 5.5.2-2
Versions of packages scilab suggests:
ii scilab-doc-fr 5.5.2-2
pn scilab-doc-ja <none>
pn scilab-doc-pt-br <none>
-- no debconf information
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