三角関数の表 - KeTCindyによる図入り教材の作成

三角関数の値の表をつくる

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table_trigratio.zip

Setcolor([0.2,0,0,0]);
Shade(["sg1"]);
Shade(["sg2"]);
Setcolor("black");
／／ 表の左と上に網がけをする
／／ 　注）sg1,sg2は後で定義されるが，Shadeはその前におく
／／ 　　その方が色のはみ出しがなくてきれいに書ける
xLst=[15,15,15,15,15,15,15,15,15,15];
yLst=[10,10,10,10];
rmvL=[];
Tabledata("",xLst,yLst,rmvL);
／／ 縦横の罫線の幅リスト，消す罫線のリストを与えて
／／ 表を作成
Tlistplot("1",["c0r1","c1r1","c1r4","c0r4","c0r1"],["nodisp"]);
Tlistplot("2",["c0r0","c10r0","c10r1","c0r1","c0r0"],["nodisp"]);
Tlistplot(["c5r3","c6r4"]);
／／ グリッド点を結んだ線分を作る
／／ 　注）sg1,sg2は表示しない
Putrowexpr(1,"c",["\alpha","0^{\circ}","30^{\circ}","45^{\circ}","60^{\circ}","90^{\circ}","120^{\circ}","135^{\circ}","150^{\circ}","180^{\circ}"]);
Putrowexpr(2,"c",["\sin\alpha","0","\dfrac{1}{2}","\dfrac{\sqrt{2}}{2}","\dfrac{\sqrt{3}}{2}","1","\dfrac{\sqrt{3}}{2}","\dfrac{\sqrt{2}}{2}","\dfrac{1}{2}","0"]);
Putrowexpr(3,"c",["\cos\alpha","1","\dfrac{\sqrt{3}}{2}","\dfrac{\sqrt{2}}{2}","\dfrac{1}{2}","0","-\dfrac{1}{2}","-\dfrac{\sqrt{2}}{2}","-\dfrac{\sqrt{3}}{2}","-1"]);
Putrowexpr(4,"c",["\tan\alpha","0","\dfrac{1}{\sqrt{3}}","1","\sqrt{3}","","-\sqrt{3}","-1","-\dfrac{1}{\sqrt{3}}","0"]);
／／ 各行ごとに数式を入れる