User:Malcolm/wip/Sage WW Notes: Difference between revisions
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When passing functions to Sage, if the function is defined as a math object problems can occur since it can happen that none of | When passing functions to Sage, if the function is defined as a math object problems can occur since it can happen that none of | ||
< | <source lang="perl"> | ||
$f | $f | ||
$f->string() | $f->string() | ||
$f->stringify() | $f->stringify() | ||
$f->TeX() | $f->TeX() | ||
</ | </source> | ||
return the orginal string used to define the function. | |||
For example with the set up: | For example with the set up: | ||
< | <source lang="perl"> | ||
Context("Numeric"); | Context("Numeric"); | ||
$f = Compute("(x-(-2))*(x-2)*(x-4)"); | $f = Compute("(x-(-2))*(x-2)*(x-4)"); | ||
</ | </source> | ||
then | then | ||
< | *<tt>$f->string()</tt> produces <tt>[x-(-2)]*(x-2)*(x-4)</tt> | ||
$f->TeX() produces\left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right) | * <tt>$f->TeX()</tt> produces <tt>\left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right)</tt> | ||
$f->stringify() produces: | * <tt>$f->stringify()</tt> produces: | ||
[x-(-2)]*(x-2)*(x-4) in normalStrings | ** <tt>[x-(-2)]*(x-2)*(x-4)</tt> in <tt>normalStrings</tt> | ||
\left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right) in texStrings | ** <tt>\left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right)</tt> in <tt>texStrings</tt> | ||
Possible solution: | Possible solution: | ||
Use a construction like | # Use a construction like | ||
< | #: <source> $f_raw = "(x-(-2))*(x-2)*(x-4)";</source> | ||
$f_raw = "(x-(-2))*(x-2)*(x-4)"; | #: <source> $f = Compute($f_raw); </source> | ||
$f = Compute($f_raw); | And use <tt>$f_raw</tt> to pass to Sage and <tt>$f</tt> to work with in WW. | ||
</ | |||
Revision as of 19:09, 12 June 2012
Notes on embedding Sage into WW problems using the Sage cell server - May/June 2012
When passing functions to Sage, if the function is defined as a math object problems can occur since it can happen that none of <source lang="perl"> $f $f->string() $f->stringify() $f->TeX() </source> return the orginal string used to define the function.
For example with the set up: <source lang="perl"> Context("Numeric"); $f = Compute("(x-(-2))*(x-2)*(x-4)"); </source> then
- $f->string() produces [x-(-2)]*(x-2)*(x-4)
- $f->TeX() produces \left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right)
- $f->stringify() produces:
- [x-(-2)]*(x-2)*(x-4) in normalStrings
- \left(x-\left(-2\right)\right)\!\left(x-2\right)\!\left(x-4\right) in texStrings
Possible solution:
- Use a construction like
- <source> $f_raw = "(x-(-2))*(x-2)*(x-4)";</source>
- <source> $f = Compute($f_raw); </source>
And use $f_raw to pass to Sage and $f to work with in WW.