[usth] Numerical Method is MATH2.4

1 files changed, 0 insertions, 62 deletions

diff --git a/usth/MATH2.2/labwork/1/intro b/usth/MATH2.2/labwork/1/intro
deleted file mode 100755
index 555f874..0000000
--- a/usth/MATH2.2/labwork/1/intro
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/usr/bin/env octave
-% Exercise I.1.1
-x = 1 : 5
-printf ("x (3) + x (2) = %f\n", x (3) + x (2));
-
-% Exercise I.1.2
-x = x'
-
-% Exercise I.2.1
-A = zeros (3, 3)
-A += eye (3)
-A += [0 0 0; 2 0 0; 3 4 0]
-B = A'
-A + B
-A - B
-A * B  % matmul
-A .* B % element-wise mul
-A(1:2, 1:2)
-A(1:3)
-A(1:3, 1) % col
-A(:, 1) % col
-
-% Exercise I.3
-function avg = mean (v)
-  avg = sum (v) / numel (v);
-end
-mean (x)
-
-% Exercise I.4
-function price = ebill (kwh)
-  l = [50 50 100 100 100 Inf];
-  p = [1.484 1.533 1.786 2.242 2.503 2.587];
-  for i = 1 : 6
-    if (kwh > l(i))
-      kwh -= l(i);
-    else
-      l(i) = kwh;
-      kwh = 0;
-    end
-  end
-  price = sum (l .* p);
-end
-
-% Exercise I.5.1
-a = (@(x) x*x') (1 : 1000)
-b = sum (arrayfun (@(x) (-1)^x / (1 + x*2), [0 : 501]))
-c = sum (arrayfun (@(x) 1 / (1 + x*2)^2 / (3 + x*2)^2, [0 : 420])) - (pi^2 - 8)/16
-
-% Exercise I.5.2
-function p = permutations (n, k)
-  p = factorial (n) / factorial (n - k);
-end
-function c = combinations (n, k)
-  c = permutations (n, k) / factorial (k);
-end
-
-% Exercise I.6
-log (2) / log (1.1)
-
-% Exercise I.7
-x = linspace(-5, 5);
-plot (x, x + 1, 'color', 'green');