Description Continued..

asec

Inverse secant

Syntax

• Y = asec(X)
  

Description

Y = asec(X) returns the inverse secant (arcsecant) for each element of X.

The asec function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Examples

Graph the inverse secant over the domains and .

• x1 = -5:0.01:-1;
  x2 = 1:0.01:5;
  plot(x1,asec(x1),x2,asec(x2)), grid on
  
  
  

Definition

The inverse secant can be defined as

• 

Algorithm

asec uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM


asech

Inverse hyperbolic secant

Syntax

• Y = asech(X)
  

Description

Y = asech(X) returns the inverse hyperbolic secant for each element of X.

The asech function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Examples

Graph the inverse hyperbolic secant over the domain .

• x = 0.01:0.001:1;
  plot(x,asech(x)), grid on
  
  
  

Definition

The hyperbolic inverse secant can be defined as

• 

Algorithm

asech uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM


asin

Inverse sine

Syntax

• Y = asin(X)
  

Description

Y = asin(X) returns the inverse sine (arcsine) for each element of X. For real elements of X in the domain , asin(X) is in the range . For real elements of x outside the range , asin(X) is complex.

The asin function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Examples

Graph the inverse sine function over the domain .

• x = -1:.01:1;
  plot(x,asin(x)), grid on
  

Definition

The inverse sine can be defined as

• 

Algorithm

asin uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM