Implemented tickets #239 #240 #241 #242 #243 "Add the zeta function" "Add the beta function" "Add the clausen function" "Add the dilogarithm" "Add the digamma function"
Fixed issue #325 "String variables cannot be used as plotting legends"
Fixed issue #324 "Strange abort in loops if '$' is used in strings"
Fixed issue #323 "'progress' doesn't interpret masked quotation marks"
Fixed the "done" messages during plotting not disappearing in procedure mask mode.
Fixed an issue in #257 Changed the order of the string ternary evaluation and the concatenation
Fixed issue #308 Made the param recognition string-aware
Fixed issue #314 Found another source of the issue
Fixed issue of #264 An unhandled exception occured if the .len method is used with parentheses
Implemented ticket #292 "Create a 'xor()' multiargument function" Added the 'xor()' function to the parser