bsave, bload

bsave(obj,"filename")

:: This function writes obj onto filename in binary form.

bload("filename")

:: This function reads an expression from filename in binary form.

return

bsave() : 1, bload() : the expression read

obj

arbitrary expression which does not contain neither function forms nor unknown coefficients.

filename

filename

• Function bsave() writes an object onto a file in its internal form (not exact internal form but very similar). Function bload() read the expression from files which is written by bsave(). Current implementation support arbitrary expressions, including lists, arrays (i.e., vectors and matrices), except for function forms and unknown coefficients (vtype() References.)
• The parser is activated to retrieve expressions written by output() , whereas internal forms are directly reconstructed by bload() from the bsave()'ed object in the file. The latter is much more efficient with respect to both time and space.
• It may happen that the variable ordering at reading is changed from that at writing. In such a case, the variable ordering in the internal expression is automatically rearranged according to the current variable ordering.
• On Windows one has to use `/' as the separator of directory names.

[0] A=(x+y+z+u+v+w)^20$
[1] bsave(A,"afo");
1
[2] B = bload("afo")$
[3] A == B;
1
[4] X=(x+y)^2; 
x^2+2*y*x+y^2
[5] bsave(X,"afo")$
[6] quit;
% asir
[0] ord([y,x])$    
[1] bload("afo");
y^2+2*x*y+x^2

References

section output.

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