Version:           2.4 (using KDE 4.2.0)
OS:                Linux
Installed from:    Fedora RPMs

Description of problem:
kcalc sometimes calculates cos(0)=0 if deg/rad/grad is left on initial "deg" button selection

Version-Release number of selected component (if applicable):
kdeutils-4.2.0-1.fc10.x86_64

How reproducible:
random: probably depends on uninitialized memory value
sometimes works, sometimes doesn't on 3 different computers running Fedora 9 and 10 AMD and Intel.

1. start kcalc: display says "0"
2. enable Settings->science: display says "deg"
3. click "cos" button
4. get answer 0 which is the result of a "cos" of the initial "0" in degrees
5. click on rad
6. click on deg
7. click "cos" button
8. get correct answer 1

Actual results:
answer 0 first time (step 4), answer 1 second time (step 8)

Expected results:
answer 1 both times

Additional info:
Looks like _angle_mode is never initialised in the code even though "deg"
button is selected on startup

See also 1. start kcalc: display says "0"
2. enable Settings->science: display says "deg"
3. click "cos" button
4. get answer 0 which is the result of a "cos" of the initial "0" in degrees
5. click on rad
6. click on deg
7. click "cos" button
8. get correct answer 1

Actual results:
answer 0 first time (step 4), answer 1 second time (step 8)

Expected results:
answer 1 both times

See also:
https://bugzilla.redhat.com/show_bug.cgi?id=487020