Angle in radiance or digres.

[Dayananda]

I can get the TAN value of the angle 300/1125 = 0.266666667  Now how can I get the  Angle  in digress or in radians by LISP.

[Dayananda]

Finally I found it.  Atan

[Lee Mac]

• To convert from degrees to radians, you would divide by 180 and multiply by pi.
• To convert from radians to degrees, you would divide by pi and multiply by 180.

Such functions may be defined in the following way:

(defun dtr ( a ) (* pi (/ a 180.0)))

(defun rtd ( a ) (* 180.0 (/ a pi)))

Provided with a tangent of 0.26 recurring, you can obtain the corresponding angle in radians using:

(atan 300 1125) = 0.260602 radians

Alternatively:

(atan 0.266666667) = 0.260602 radians

Using the rtd function defined above, you can convert this to degrees:

(rtd (atan 300 1125)) = 14.9314 degrees

 

[BIGAL]

Also look at angtos

 

(angtos 0.26 3)
"0.2600r"

(angtos 0.26 4)
"N 75d6'11\" E"

(angtos 0.26 1)
"14d53'49\""