The asin() is an inbuilt function in Ruby returns the arc sine of a number means give a sin value to this function it will return the angle in radian corresponding to that value. The value passed is in between -1 and +1.
Syntax: Math.asin(value)
Parameters: The function accepts one mandatory parameter value whose corresponding angle we have to find.
Return Value: It returns the angle in radians which in range -pi/2 to +pi/2.
Example 1:
#Ruby program for asin() function
#Assigning values
val1 = 1 val2 = 0.5 val3 = -1 val4 = -0.9
#Prints the asin() value
puts Math.asin(val1)
puts Math.asin(val2)
puts Math.asin(val3)
puts Math.asin(val4)
Output:
1.5707963267948966 0.5235987755982989 -1.5707963267948966 -1.1197695149986342
Example 2:
#Ruby program for asin() function
#Assigning values
val1 = 0.87 val2 = 0.67 val3 = -0.679 val4 = -0.564
#Prints the asin() value
puts Math.asin(val1)
puts Math.asin(val2)
puts Math.asin(val3)
puts Math.asin(val4)
Output:
1.0552023205488061 0.7342087874533589 -0.746399633896421 -0.59922176813665