https://bugs.kde.org/show_bug.cgi?id=358451
Bug ID: 358451
Summary: Constants are not graphed correctly
Product: kalgebra
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: aleix...@kde.org
Reporter: richard-...@esplins.org
Constants are helpful for creating lines in the viewport, for comparing against
more complex functions, and for explaining what graphs are to beginning
learners. Kalgebra handles constants in un-intuitive ways.
Case: Y=5 attempt 1
Steps to reproduce:
* 2D Graph
* Add Function
* 5
Expected behavior:
* A straight line at y=5 (for any value of x, y equals 5)
Observed behavior:
" "Function type not recognized"
Case: Y=5 attempt 2
Steps to reproduce:
* 2D Graph
* Add Function
* y=5
Expected behavior:
* A horizontal line at y=5 (for any value of x, y equals 5)
Observed behavior:
" Graph is y = x+5 (line with slope of 1, x intersect at -5 and y intersect at
5)
Case: X = 5
Steps to reproduce:
* 2D Graph
* Add Function
* X=5
Expected behavior:
* A vertical line at x=5 (for any value of y, y equals 5)
Observed behavior:
" Graph is y = x-5 (line with slope of 1, x intersect at 5 and y intersect at
-5)
Reproducible: Always
In the 3D case, it is similarly difficult to create lines or planes that exist
only in one axis. The engine seems to handle these cases incorrectly.
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