https://bugs.freedesktop.org/show_bug.cgi?id=81267
Owen Genat <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #3 from Owen Genat <[email protected]> --- (In reply to comment #0) > I request an enhancement of the formula editor to support the repeat > operator using the big R notation proposed by Yingxu Wang. ... > For example, the generalization of the summation operator could > be expressed like this: > > sum from i = 1 to k x_i = repeat from i = 1 to k "sum"(x_i) (In reply to comment #2) > Yingxu Wang refer to "The Big-R Notation" in that paper. The definition is > in section "2.2.1 The Big-R Notation" (Definition 4) on PDF page 5. Thanks for clarifying. The main issue appears to be in relation to setting the R operator (non-italic+bold+size). Apart from this, the two examples on this page can be set using: oper R from {exp bold{nitalic{font sans BL}} = bold{nitalic{font sans T}}} to bold{nitalic{font sans F}} P newline oper R from {i bold{nitalic{font sans N}} = 1} to n P(i bold{nitalic{font sans N}}) > A simple example use case is in section "4.1 The Big-R Notation of RTPA for > Modeling Iterative and Recursive System Architectures and Behaviors" > (Example 1.) on PDF page 15. ... and the two examples on this page can be set using: sum from i = 1 to n {x_i} = oper R from nitalic{i} = 1 to n italic{"sum"} ({x_i}) newline {A_nm} = oper R from nitalic{i} = 0 to n-1 oper R from nitalic{j} = 0 to m-1 A[i,j]bold{nitalic{font sans N}} There may be a way to set the R operator as required, but I cannot work out how. Confirmed. Status set to NEW. -- You are receiving this mail because: You are the assignee for the bug.
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