eldo_user

Eldo Control Language
Statement Overview
set b[]=0.1
b[10]=1.0e-6
In this example, the first statement creates an empty vector, b. The second assignment extends
the range of b to [10,10]. The elements b[10] is set to 1.0×10 −6 .
Filling Vector Sub-range
It is possible to fill a sub-range of a vector with a value using the assignment operator. For
example:
set b[-5,5]=1.414
set i = 0
step (param=i, start=0, stop=5, step=1)
b[i] = 1.732
endstep
is a very complicated way to accomplish the same as:
set b[-5,5]=1.414
b[0,5] = 1.732
Filling can simultaneously extend the range if needed:
set b[-5,5]=1.414
b[-10,10] = 1.732
It is possible to use negative indexes such as in:
set a[-50,50] = 10
which would declare a vector containing 101 values, addressable from a[-50] to a[50]. The
entire vector is initially filled with the value 10.0. Explicitly specifying an initial fill-in value is
mandatory.
Although negative indices are allowed, the addressing is always in ascending order; in other
words, imax must be greater than or equal to imin.
To explicitly define a one-dimensional array with different values specify them inside {}. If
used inside a declaration, the default value of the array is the first of the set; if not specified, the
first index of the array is 1. The ranges, when explicitly specified, must correspond otherwise an
error will occur at run-time. Examples:
Eldo® User's Manual, 15.3 827