Mathematical symbol processing
C. Abraham, T. Pearcey · 1967
Most of the early efforts to write computer programs which perform symbolic mathematical operations were directed toward polynomial manipulation including their differentiation and integration [1, 2]. In 1961, Bernick et al. [3] produced an interpretive routine to provide multiple capabilities for a general class of mathematical expression. More recent programs belonging to the same class are FORMAC [4] and Formula ALGOL, [5] but both suffer various kinds of restrictions.