WebOct 1, 2014 · The when equation is only active when the condition becomes true. In your case the condition time < 2 is true from the beginning and only becomes false. b = time < … http://modelica.readthedocs.io/en/latest/operators.html
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WebModelica supports the standard set of relational and logical operators, all of which produce the standard boolean values true or false. A single equals sign = is never used in relational expressions, only in equations ( TODO: Chapter 8, Section 10.6.1) and in function calls using named parameter passing ( TODO: Section 12.4.1 ). If clause parameter Boolean linear=true; parameter Boolean quadratic=false; Real x, y; equation if linear then y = x + 1; elseif quadratic then y = x^2 + x + 1; else y = Modelica.Math.sin (x) + 1; end if ; If expression Integer i; Integer sign_of_i= if i<0 then -1 else if i==0 then 0 else 1; Syntax In equation sections: in a weak mayor system the mayor’s role is to
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WebAn if expression has the form: if cexpr then expr1 else expr2; where cexpr is a conditional expression (that will evaluate to a Boolean value), expr1 is the value the expression will … WebDescription The expression of a while clause shall be a scalar Boolean expression. The while-clause corresponds to while-statements in programming languages, and is formally … WebJun 1, 2024 · Modelica has equations and algorithms. Algorithms work similarly as in most languages and allow while-loops. Equations are always valid and unordered so if you write v_guess = v_guess*0.95; it means that v_guess should always have this value - which only has the solution v_guess=0 - which is likely not what you want. in a way the first person did some rambling