diff options
Diffstat (limited to 'src/algebra/formula.spad.pamphlet')
| -rw-r--r-- | src/algebra/formula.spad.pamphlet | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/algebra/formula.spad.pamphlet b/src/algebra/formula.spad.pamphlet index b5668638..51506fc6 100644 --- a/src/algebra/formula.spad.pamphlet +++ b/src/algebra/formula.spad.pamphlet @@ -289,22 +289,22 @@ ScriptFormulaFormat(): public == private where args := rest args null args => concat form tmp : S := formatFormula(first args, minPrec) - if tmp ^= "" then form := append(form,[" sub ",tmp])$(List S) + if tmp ~= "" then form := append(form,[" sub ",tmp])$(List S) -- superscripts args := rest args null args => group concat form tmp : S := formatFormula(first args, minPrec) - if tmp ^= "" then form := append(form,[" sup ",tmp])$(List S) + if tmp ~= "" then form := append(form,[" sup ",tmp])$(List S) -- presuperscripts args := rest args null args => group concat form tmp : S := formatFormula(first args, minPrec) - if tmp ^= "" then form := append(form,[" presup ",tmp])$(List S) + if tmp ~= "" then form := append(form,[" presup ",tmp])$(List S) -- presubscripts args := rest args null args => group concat form tmp : S := formatFormula(first args, minPrec) - if tmp ^= "" then form := append(form,[" presub ",tmp])$(List S) + if tmp ~= "" then form := append(form,[" presub ",tmp])$(List S) group concat form op = "MATRIX" => formatMatrix rest args -- op = "ZAG" => @@ -318,7 +318,7 @@ ScriptFormulaFormat(): public == private where p < 1 => error "unknown Script Formula Formatter unary op" opPrec := plexPrecs.p n : I := #args - (n ^= 2) and (n ^= 3) => error "wrong number of arguments for plex" + (n ~= 2) and (n ~= 3) => error "wrong number of arguments for plex" s : S := op = "SIGMA" => "sum" op = "PI" => "product" @@ -327,12 +327,12 @@ ScriptFormulaFormat(): public == private where "????" hold := formatFormula(first args,minPrec) args := rest args - if op ^= "INDEFINTEGRAL" then - if hold ^= "" then + if op ~= "INDEFINTEGRAL" then + if hold ~= "" then s := concat [s," from",group concat ["\displaystyle ",hold]] if not null rest args then hold := formatFormula(first args,minPrec) - if hold ^= "" then + if hold ~= "" then s := concat [s," to",group concat ["\displaystyle ",hold]] args := rest args s := concat [s," ",formatFormula(first args,minPrec)] |