Add tasks for all the new languages

Task/Thieles-interpolation-formula/Sidef/thieles-interpolation-formula.sidef

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+func thiele(x, y) {
+    var ρ = y.range.map {|i| [y[i]]*(y.len-i) }
+
+    for i in ^(ρ.end) {
+        ρ[i][1] = ((x[i] - x[i+1]) / (ρ[i][0] - ρ[i+1][0]))
+    }
+    for i in range(2, ρ.end) {
+        for j in range(0, ρ.end - i) {
+            ρ[j][i] = (((x[j]-x[j+i]) / (ρ[j][i-1]-ρ[j+1][i-1])) + ρ[j+1][i-2])
+        }
+    }
+
+    var ρ0 = ρ[0]
+
+    func t(xin) {
+        var a = 0
+        for i in range(ρ0.end, 2, -1) {
+            a = ((xin - x[i-1]) / (ρ0[i] - ρ0[i-2] + a))
+        }
+        y[0] + ((xin-x[0]) / (ρ0[1]+a))
+    }
+    return t
+}
+
+# task 1: build 32 row trig table
+var xVal = range(32).map { |k| k * 0.05 }
+var tSin = xVal.map { .sin }
+var tCos = xVal.map { .cos }
+var tTan = xVal.map { .tan }
+
+# task 2: define inverses
+var iSin = thiele(tSin, xVal)
+var iCos = thiele(tCos, xVal)
+var iTan = thiele(tTan, xVal)
+
+# task 3: demonstrate identities
+say 6*iSin(0.5)
+say 3*iCos(0.5)
+say 4*iTan(1)