my math skills are really lacking right now ...

[purbeast0]

I don't know why I can't remember this, and I can't seem to find the damn answer on google for this type of equation ... but what the hell is X here?

.9 = cos(x)

maybe my google skills are lacking too?

 

[3NF]

Degrees or Radians? Use the calculator on your PC

 

[Juice Box]

Cant you just take the cosecant of .9?

 

[purbeast0]

Originally posted by: 3NF
Degrees or Radians? Use the calculator on your PC

X is in radians.

and I am using this math for a program I'm writing, can't just use my PC calculator 😛

 

[newb111]

x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

 

[purbeast0]

Originally posted by: newb111
x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

lol ... great, how the hell do you do that in code?

 

[newb111]

Originally posted by: purbeast0

Originally posted by: newb111
x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

lol ... great, how the hell do you do that in code?

that's not what you asked 🙂

What language are you coding in?

 

[3NF]

Maybe this will help,

http://en.wikipedia.org/wiki/Inverse_trigonometric_function

Is there a math library that contains the arccos function?

 

[purbeast0]

Originally posted by: newb111

Originally posted by: purbeast0

Originally posted by: newb111
x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

lol ... great, how the hell do you do that in code?

that's not what you asked 🙂

What language are you coding in?

I'm doing it in C++. I know there is a cos function, but I don't know how the hell to make it to the ^1 then multiply it by .9

 

[tfinch2]

Originally posted by: purbeast0

Originally posted by: newb111

Originally posted by: purbeast0

Originally posted by: newb111
x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

lol ... great, how the hell do you do that in code?

that's not what you asked 🙂

What language are you coding in?

I'm doing it in C++. I know there is a cos function, but I don't know how the hell to make it to the ^1 then multiply it by .9

RTFM

http://www.opengroup.org/onlinepubs/7990989799/xsh/math.h.html

 

[3NF]

Look for acos 🙂

 

[purbeast0]

Originally posted by: tfinch2

Originally posted by: purbeast0

Originally posted by: newb111

Originally posted by: purbeast0

Originally posted by: newb111
x=cos^-1(.9)

or 25.8419 degrees
or .45103 radians

lol ... great, how the hell do you do that in code?

that's not what you asked 🙂

What language are you coding in?

I'm doing it in C++. I know there is a cos function, but I don't know how the hell to make it to the ^1 then multiply it by .9

RTFM

http://www.opengroup.org/onlinepubs/7990989799/xsh/math.h.html

ouch ... lol thanks.

 

[neutralizer]

I think you're lacking in both geometry and programming skills 😛.

 

[drinkmorejava]

I really do have to go with tfinch2 on this one, RTFM