Online Algebra Calculator
Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
Function: filename_merge (<path>, <filename>) Constructs a modified path from <path> and <filename>. If the final component of <path> is of the form ###.<something>, the component is replaced with <filename>.<something>. Otherwise, the final component is simply replaced by <filename>.
The result is a Lisp pathname object.
(%o1) true (%i2)