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Topic: M9. Error messages when assign ContourPlot graphic to variable
Replies: 2   Last Post: Dec 8, 2012 1:27 AM

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 Bob Hanlon Posts: 906 Registered: 10/29/11
Re: M9. Error messages when assign ContourPlot graphic to variable
Posted: Dec 7, 2012 1:37 AM

\$Version

"9.0 for Mac OS X x86 (64-bit) (November 20, 2012)"

pf[a_, b_] = ParametricNDSolveValue[
{y''[x] == -a y[x], y[0] == a, y'[0] == b},
y, {x, 0, 20}, {a, b}][a, b];

ContourPlot[pf[a, b][5] == 0,
{a, 0, 5}, {b, 0, 5},
ContourStyle -> {Red, Thick}]

ContourPlot[pf[a, b][5],
{a, 0, 5}, {b, 0, 5},
ContourStyle -> {Automatic, Automatic,
{Red, Thick}, Automatic, Automatic}]

cp = ContourPlot[pf[a, b][5],
{a, 0, 5}, {b, 0, 5}];

Manipulate[
Show[
cp,
ContourPlot[
pf[a, b][5] == value,
{a, 0, 5}, {b, 0, 5},
ContourStyle -> Red]],
{{value, 0, "Value"}, Range[-4, 8, 2]}]

Bob Hanlon

On Thu, Dec 6, 2012 at 4:59 AM, Grischika <Grischika@mail.ru> wrote:
> Running this code
> pf = ParametricNDSolveValue[{y''[x] == -a y[x], y[0] == a,
> y'[0] == b}, y, {x, 0, 20}, {a, b}];
> ContourPlot[{pf[a, b][5] == 0}, {a, 0, 5}, {b, 0, 5}]
>
> then copy and past this image to input cell. Execute the cell. The following message appears:
>
> ParametricFunction::argrx: ParametricFunction called with 0 arguments; 6 arguments are expected. >>
>
> Windows XP 32 bit
> Mathematica 9.0.0
>
> Grigory
>

Date Subject Author
12/7/12 Bob Hanlon
12/8/12 Grischika@mail.ru