Exp
Keywords: main

Subsections

- Library
- Description
- Dialog Box
- Default properties
- Interfacing function
- Computational function (type 0)

##
Exp

### Library

Non_linear

### Description

This block realizes . The input and output port sizes are determined by the compiler.

### Dialog Box

Set aû block parameters |
a (0) | %e

- a : A real positive scalar

### Default properties

- always active: no
- direct-feedthrough: yes
- zero-crossing: no
- mode: no
- number/sizes of inputs: 1 / -1
- number/sizes of outputs: 1 / -1
- number/sizes of activation inputs: 0 /
- number/sizes of activation outputs: 0 /
- continuous-time state: no
- discrete-time state: no
- name of computational function: expblk

### Interfacing function

`scilab/macros/scicos_blocks/nonlinear/EXPBLK_f.sci`

### Computational function (type 0)

          subroutine expblk(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
         &     rpar,nrpar,ipar,nipar,u,nu,y,ny)
    c     Copyright INRIA

    c     Scicos block simulator
    c     Outputs a^u(i)
    c     a=rpar(1)
    c
          double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
          integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
          integer nipar,nu,ny

    c
          if(flag.eq.1) then
             do 15 i=1,nu
                   y(i)=exp(log(rpar(1))*u(i))
     15      continue
          endif
          if(flag.ge.4) then
             do 20 i=1,nu
                   y(i)=exp(log(rpar(1))*u(i))
     20      continue
          endif

          end