bload(): the expression read
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 (
output(), whereas internal forms are directly reconstructed by
bsave()'ed object in the file. The latter is much more efficient with respect to both time and space.
 A=(x+y+z+u+v+w)^20$  bsave(A,"afo"); 1  B = bload("afo")$  A == B; 1  X=(x+y)^2; x^2+2*y*x+y^2  bsave(X,"afo")$  quit; % asir  ord([y,x])$  bload("afo"); y^2+2*x*y+x^2
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