CODEWITHSUNDEEP
ctrigonometrydegreesradians
suk
suk

Reputation: 31

cos result incorrect

I import "math.h".

I can use the cos function, but when I execute cos(0.321139585333178) the result is 0.948876

If I use the calculator in Mac or use a normal calculator, the result is 0.999984292347418

Can anyone help me to solve that problem?

Upvotes: 3

Views: 382

Answers (1)

Mark Byers
Mark Byers

Reputation: 837946

You're confusing degrees with radians.

cos(0.321139585333178 degrees) = 0.999984292

cos(0.321139585333178 radians) = 0.948876326

  • To convert from radians to degrees, multiply by 180/π.
  • To convert from degrees to radians, multiply by π/180.

Upvotes: 19

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