angle asin( real a )

[HMC400]

Hello, I would kindly need some help on a trig function.
This : 

real sin ( angle 0 )

that's how it works :

Real angolo = 60
Real Numero = 20
Real Hello = ''
$Hello = $Numero *(sin( $angolo ))
Message Info $Hello

how do i make this work?

angle asin( real a )

thank you

[cfastNJWK6]

This should get you started:

REAL $angle = 60.
REAL $Numero = 20.

REAL $Hello = $Numero * sin($angle)
STRING $msg = "Answer equals " + string($Hello)

MESSAGE INFO $msg

[HMC400]

hi sorry if i expressed myself wrong but i wanted to make this work:

angle asin( real a)

I also put a screenshot

thank you

[cfastNJWK6 · Accepted solution]

The syntax should be exactly the same as the sin() function.  But the asin() function must have a value between -1 and 1 in the parenthesis.

sin(angle)

asin(Opposite/Hypotenuse)