initial commit / add all books

1 files changed, 28 insertions, 0 deletions

diff --git a/1670/CH5/EX5.1/5_1.sce b/1670/CH5/EX5.1/5_1.sce
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+//Example 5.1

+//Backward Difference Formula

+//Page no. 124

+clc;close;clear;

+printf('\tx\t\ty\t1st Difference    2nd Difference  3rd Difference  4th Difference\n')

+printf('-------------------------------------------------------------------------------------------------')

+h=0.02;

+z=[-1;0;1;2;3;4;5]

+deff('y=f(x)','y=x^3-3*x^2+5*x-7')

+for i=1:7

+    z(i,2)=f(z(i,1))

+end

+for i=3:8

+    for j=1:9-i

+        z(j,i)=z(j+1,i-1)-z(j,i-1)

+    end

+end

+printf('\n')

+for i=1:7

+    for j=1:6

+        if z(i,j)==0 then

+            printf('\t%i\t',z(i,j))

+        else

+            printf('\t%i\t',z(i,j))

+        end

+    end

+    printf('\n')

+end
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