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Question: bug report: int() gives Error, (in tools/eval_foo/do) too many levels of recursion. Maple 2025.1

Question:bug report: int() gives Error, (in tools/eval_foo/do) too many levels of recursion. Maple 2025.1

nm 11398 Maple 2025
integration int indefinite-integration
August 20 2025
2

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.`

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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
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