TY - BOOK AU - Varga, Richard S., TI - Functional analysis and approximation theory in numerical analysis T2 - Regional conference sers. in applied mathematics AV - QA297 V37 PY - 1971/// CY - Philadelphia PB - Society for industrial and applied mathematics KW - Análisis numérico KW - Análisis funcional KW - Teoría de la aproximación ER -