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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@7887 8e941d3f-bd1b-0410-a28a-d453659cc2b4
68 lines
1.3 KiB
ObjectPascal
68 lines
1.3 KiB
ObjectPascal
unit TprobUnit;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
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StdCtrls, functionslib;
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type
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{ TTprobForm }
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TTprobForm = class(TForm)
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CancelBtn: TButton;
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tValueEdit: TEdit;
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ComputeBtn: TButton;
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DFEdit: TEdit;
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Label1: TLabel;
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Label2: TLabel;
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Label3: TLabel;
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ProbEdit: TEdit;
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ResetBtn: TButton;
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ReturnBtn: TButton;
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procedure ComputeBtnClick(Sender: TObject);
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procedure ResetBtnClick(Sender: TObject);
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private
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{ private declarations }
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public
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{ public declarations }
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end;
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var
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TprobForm: TTprobForm;
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implementation
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{ TTprobForm }
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procedure TTprobForm.ResetBtnClick(Sender: TObject);
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begin
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tValueEdit.Text := '';
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DFEdit.Text := '';
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ProbEdit.Text := '';
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end;
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procedure TTprobForm.ComputeBtnClick(Sender: TObject);
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VAR
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tvalue, dfvalue, prob : double;
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outvalue : string;
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begin
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tvalue := StrToFloat(tValueEdit.Text);
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dfvalue := StrToFloat(DFEdit.Text);
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if tvalue >= 0.0 then prob := 0.5 * probt(tvalue,dfvalue);
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if tvalue < 0.0 then prob := 1.0 - probt(tvalue,dfvalue) +
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(0.5 * probt(tvalue,dfvalue)) ;
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if tvalue = 0.0 then prob := 0.50;
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outvalue := format('%6.4f',[prob]);
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ProbEdit.Text := outvalue;
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end;
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initialization
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{$I tprobunit.lrs}
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end.
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