HP 50G help

[Tugdual]

(04-23-2015 10:23 PM)peacecalc Wrote:  Hello Tugdual,

a first short test shows (with the real calc).

a) real exact mode
b) used expression: \[ \frac{3}{10}\cdot\sin(2\cdot N \cdot X) \cdot\ (1 - \frac{1}{A}) \] does not work (internally the command intvx tried to use the partial integration method with u = \[ 1 - \frac{1}{A} \] ) and failed.
c) used expression: \[ \frac{3}{10}\cdot\ (1 - \frac{1}{A})\cdot\sin(2\cdot N \cdot X) \] does work (internally the command intvx tried to use the linearization method of the sin function ) and you get the right result.

I used 3/10 instead of 0.3 because in general it is not a good idea to mix exact numbers with real numbers with symbolic transformations.

greetings peacecalc

Hi Peacecalc, I tried on the emulator and it works.
But the real calc keeps saying this

I have no idea why....

Note: I used smaller case 'a' and Pi instead of 'N' but ultimately it doesn't make any difference.

Edit: I just resetted the 50g F1+F6+ON and now it works fine.
Oh well...