Advanced Search

nm

11378 Reputation

20 Badges

13 years, 49 days
Contact nm

MaplePrimes Activity


These are questions asked by nm

How to make font larger in debugger? Li...

nm 11378 Maple 2025
August 29 2025
0 2

The font size in the debugger is very small.

Even if I increase the zoom in the worksheet before starting the debugger, this has no effect on the debugger.

Is there an option to use larger font for the debugger? Here is an example, this is worksheet after making the zoom 145%

 

And here is the debugger window.  side by side with the worksheet. Notice the font in debugger do not change.

 

It looks even smaller on the desktop, I am using large monitor also. 

Is there separate setting to change font size for debugger?

Maple 2025.1 on Linux KDE plasma, Cauchy OS (Arch based)

Why Maple 2025.1 can't solve this fi...

nm 11378 Maple 2025
ode dsolve differential-equations
August 25 2025
2 0

I was surprised that Maple can't solve this first order ode which is exact ode.

I solved by hand and Maple says my solution is correct.

Any one can find why Maple failed to solve this and if older versions can solve it? Also tried implicit option, but that did not help.

> 

interface(version);

`Standard Worksheet Interface, Maple 2025.1, Linux, June 12 2025 Build ID 1932578`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

restart;
> 

ode:=diff(y(x),x) = (2*sin(2*x)-tan(y(x)))/x/sec(y(x))^2;

diff(y(x), x) = (2*sin(2*x)-tan(y(x)))/(x*sec(y(x))^2)

> 

sol:=dsolve(ode);

> 

mysol:=cos(2*x)+x*tan(y(x))=c__1;

cos(2*x)+x*tan(y(x)) = c__1

> 

odetest(mysol,ode);

0

 

 

Download maple_solving_exact_ode_august_25_2025.mw

Should not dsolve give implicit solution...

nm 11378 Maple 2025
ode dsolve implicit
August 22 2025
0 4

THis is problem from textbook. Maple do not give solution. 

But when asked for implicit solution, it gives one.  Should it not have done this automatically?

> 

interface(version);

`Standard Worksheet Interface, Maple 2025.1, Linux, June 12 2025 Build ID 1932578`

> 

ode:=y(x)*diff(y(x),x) = a;
ic:=y(0) = b;
sol:=dsolve([ode,ic]);

y(x)*(diff(y(x), x)) = a

y(0) = b

> 

sol:=dsolve([ode,ic],'implicit')

-2*a*x+y(x)^2-b^2 = 0

 

 

Download why_no_solution_maple_2025_1.mw

We see now there are two solutions for y(x), since quadratic.

So why dsolve do not solve this and at least give implicit solution automatically? Should this be reported as defect?

why Maple simplifies 1+sin(x)^2 to 2-cos...

nm 11378 Maple 2025
simplify simplification trig
August 20 2025
1 1

Any idea why Maple simplifies 1+sin(x)^2 to 2-cos(x)^2?  Leaf count is larger also.

> 

interface(version);

`Standard Worksheet Interface, Maple 2025.1, Linux, June 12 2025 Build ID 1932578`

> 

e1:=1+sin(x)^2;

1+sin(x)^2

> 

e2:=simplify(e1)

-cos(x)^2+2

> 

MmaTranslator:-Mma:-LeafCount(e1)

6

> 

MmaTranslator:-Mma:-LeafCount(e2)

8

 

 

Download strange_simplification_august_20_2025.mw

bug report: int() gives Error, (in tool...

nm 11378 Maple 2025
integration int indefinite-integration
August 20 2025
0 1

Attached worksheet

> 

interface(version);

`Standard Worksheet Interface, Maple 2025.1, Linux, June 12 2025 Build ID 1932578`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

Physics:-Version();

`The "Physics Updates" version in the MapleCloud is 1877 and is the same as the version installed in this computer, created 2025, July 11, 19:24 hours Pacific Time.`

> 

restart;
> 

integrand:=1/2/x^(9/2)*2^(1/2)*Pi^(1/2)/(1/x)^(1/2)*cos(1/x);

(1/2)*2^(1/2)*Pi^(1/2)*cos(1/x)/(x^(9/2)*(1/x)^(1/2))

> 

int(integrand,x)

Error, (in tools/eval_foo/do) too many levels of recursion

 

 

Download internal_error_on_int_august_20_2025_maple_2025_1.mw

Update

fyi, Here is yet another int() error Error, (in type/trig) too many levels of recursion in Maple 2025.1. (also reported to Maplesoft).

> 

interface(version);

`Standard Worksheet Interface, Maple 2025.1, Linux, June 12 2025 Build ID 1932578`

> 

SupportTools:-Version();

`The Customer Support Updates version in the MapleCloud is 29 and is the same as the version installed in this computer, created June 23, 2025, 10:25 hours Eastern Time.`

> 

Physics:-Version();

`The "Physics Updates" version in the MapleCloud is 1877 and is the same as the version installed in this computer, created 2025, July 11, 19:24 hours Pacific Time.`

> 

restart;
> 

integrand:=(a+a*sin(f*x+e))^(3/2)*(A+B*sin(f*x+e))*(c-c*sin(f*x+e))^(5/2);

(a+a*sin(f*x+e))^(3/2)*(A+B*sin(f*x+e))*(c-c*sin(f*x+e))^(5/2)

> 

int(integrand,x)

Error, (in type/trig) too many levels of recursion

> 

int(integrand,x)

(1/6)*(-c*(-1+sin(f*x+e)))^(1/2)*((3/4)*B*sin(f*x+e)*tan(f*x+e)*cos(2*f*x+2*e)+A*sin(2*f*x+2*e)-(3/8)*tan(f*x+e)*(((4/5)*B*sin(f*x+e)+A)*sin(3*f*x+3*e)+(44/15)*B*sin(f*x+e)^2+(5*A-6*B)*sin(f*x+e)-(32/3)*A))*a*c^2*(a*(1+sin(f*x+e)))^(1/2)/f

> 

restart;
> 

integrand:=(a+a*sin(f*x+e))^(3/2)*(A+B*sin(f*x+e))*(c-c*sin(f*x+e))^(5/2);
int(integrand,x)

(a+a*sin(f*x+e))^(3/2)*(A+B*sin(f*x+e))*(c-c*sin(f*x+e))^(5/2)

Error, (in type/trig) too many levels of recursion

 

 

Download another_int_error_too_many_levels_maple_2025_1.mw

1 2 3 4 5 6 7 Last Page 1 of 200