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ADA Programming Guide
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ADA Programming Guide.iso
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tef.adb
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1996-01-30
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45 lines
-- tef.adb
-- a simple test to use the non-generic elementary function package and call
-- the some trig functions. Similar to tgef.adb except here there is no
-- instantiation of GEF (Generic ELementary Functions).
with Ada.Numerics.Elementary_Functions;
with Ada.Numerics; use Ada.Numerics;
with Text_IO;
procedure Tef is
C : Character;
Y : Float;
P : Integer;
subtype Line is String (1 .. 80);
Filler : Line := (others => ' ');
Display : array (0 .. 24) of Line;
begin
Text_IO.Set_Page_Length (Text_IO.Current_Output, 0);
Text_IO.Put_Line ("Display of Sin, Cos and Arctan graphs");
Text_IO.Put_Line ("Legend: Sin (O), Cos (X), Arctan (+)");
for I in Display'range loop
Display (I) := Filler;
end loop;
Display (10) := (1 .. 80 => '-');
for I in 1 .. 20 loop
Y := Elementary_Functions.Cos (Float (I) * Pi / 10.0);
P := Integer (10.0 * Y) + 10;
Display (P)(4 * I) := 'O';
Y := Elementary_Functions.Sin (Float (I) * Pi / 10.0);
P := Integer (10.0 * Y) + 10;
Display (P)(4 * I) := 'X';
Y := Elementary_Functions.Arctan (Float (I) * Pi / 10.0);
P := Integer (10.0 * Y) + 10;
Display (P)(4 * I) := '+';
end loop;
for I in Display'range loop
Text_IO.Put_Line (Display (I));
end loop;
end Tef;