MathDF

MathDF's main field recognizes mathematical input and shows built-in calculator answers locally before anything is sent to its AI assistant. A step link opens the matching dedicated calculator with the expression loaded; photo/handwriting recognition puts an editable expression into the field. The limit calculator takes a variable, expression and point of approach, supports one-sided limits and lets users choose L'Hôpital's-rule handling. Its parser supplies missing multiplication signs/parentheses and recognizes aliases such as asin and arcsin. Inspect that interpretation when notation is ambiguous. Sending text or images to AI chat is a separate action from the browser's built-in calculation.