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AUTOMATED
CAS BUG LISTS GENERATION
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This site is dedicated to my Teachers,
A., A., A., G., K., M., R., R., R. and S.,
and their attempts to tame Complexity
Our patent pending methodologies, LIFT
and CYCLE, insure that your business objectives will not be sacrificed
to the whims or oversights of CAS architects and developers.
The most important question is how will a computer algebra system
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print: KERNEL FAILURE
> print(singular); # Standard Worksheet
Kernel Failure
MUST BE: proc (expr::{algebraic, ... |
HELP: TYPOS
Guassian ojbects elemements sytem nfinity
coorindates docecahedron knowns inteter
specifiy parition revoltion satisifies electic errror commmand
transormation fuction....
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evalf:
KERNEL FAILURE
>evalf(Int(sqrt(z)*BesselJ(0,z),z=0..infinity));
Kernel Failure
MUST BE: 0.4779887975. |
int:
SPURIOUS VARIABLE
> int((1-z)^z,z=0..1);
1/(1+z)
MUST BE: int((1-z)^z, z = (0 .. 1))
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limit:
SPURIOUS RANGE
> limit(sin(z)^2+cos(z)^2, z = infinity);
0
.. 2
MUST BE: 1 |
limit: SPURIOUS
undefined
> [limit(tan(z)*cot(z),z = infinity),
limit(simplify(tan(z)*cot(z)),z = infinity)];
[undefined, 1]
MUST BE: [1, 1] |
limit:
SPURIOUS RANGE
> limit(cos(sqrt(-z)),z = infinity);
-1
.. 1
MUST BE: infinity
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limit: SPURIOUS O FUNCTION
> limit(z/BesselY(0,I*sqrt(z)),z = infinity);
signum(O(1))*infinity
MUST BE: 0
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evalf: SPURIOUS
Float(undefined)
> evalf(Limit(sqrt(1/(1+z)^2-I/(1+z)-1),\
z = -100));
Float(undefined)
MUST BE: .5050698296e-2+.9999617388*I |
evalf: SPURIOUS Float(undefined)
>evalf(Int(0, z = 0..infinity));
Float(undefined)
MUST BE: 0. |
evalf:
INVALID MAGNITUDE
>evalf(subs(z=1000, (((-2)^z
+ 3^z )/((-2)^z -\
3^z))^(1/z)),2);
3.0+.91e-2*I
MUST BE: 1.0+.31e-2*I |
evalf: INVALID MAGNITUDE
> evalf(sum(sin(Pi/2^n), n=1..infinity));
1
MUST BE: 2.481049919 |
INTERFACE:
CRASH
An attempt to paste into a Maple session, more than
1 segment (65536 bytes) of data, Maple crashes.
Mathematica is stable under the same action. |
limit: INVALID RANGE
> limit((sin(z)+cos(z))^2, z = infinity);
limit(expand((sin(z)+cos(z))^2),z = infinity);
0
.. 4
-2
.. 4
MUST BE: 0..2 |
series: ERROR MESSAGE
> series(BesselJ(Pi,z), z=0,2);
Error, (in series/function) unable
to compute
MUST BE: 1/(2*z)^Pi/GAMMA(Pi+1)+\
O(z^(2+Pi)); |
int:
SPURIOUS CONSTANT
> int(sin(z)*exp(z)*sin(1/z), z);
0
MUST BE: int(sin(z)*exp(z)*sin(1/z), z)
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int:
SPURIOUS CONVERGENCE
> int(BesselI(0, z), z=0..infinity);
0
MUST BE: infinity |
limit:
ERROR MESSAGE
> limit(GAMMA(1, z)*z, z -> infinity);
Error, (in limit) invalid limiting point
MUST BE: 0 |
evalf: ERROR MESSAGE
>evalf(Int(0, z = 0..infinity));
Error, (in evalf/int) contradictory assumptions
MUST BE: -.5000000000*I |
minimize: MEANINGLESS VALUE
> minimize(abs(tan(I+z)),z=0..1);
f
MUST BE: (cosh(1)^2-cos(1)^2)^(1/2)/
(cos(1)^2+cosh(1)^2-1)^(1/2) |