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In v4, we were able to call
```
cheboppref('maxDegree', 4000)
```
to increase the maximum number of gridpoints that the linop solver was allowed to use. In v5, the mechanism is slightly different --…
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The following code (taken from the Orr-Sommerfeld example) fails because there is no support for diag of a chebfun in chebop.
```
Re = 2000; % Reynolds number
alph = 1; …
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Suppose one sets up the following simple eigenvalue problem:
```
dom = [-pi/2, pi/2];
D2 = operatorBlock.diff(dom, 2);
E = functionalBlock.eval(dom);
El = E(dom(1));
Er = E(dom(end));
L = linop(D2);
…
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The defects in the code for the hermite function in
sage/functions/orthogonal_polys.py which were noted and corrected in
#2336 apply equally to the other functions in that file.
The attached patc…