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The Maxima on-line user's manual

Algebra Calculator

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Obase Calculator

Obase

-- Option variable: obase Default value: 10

obase is the base for integers displayed by Maxima.

obase:10;
K(x):= 0.0003*x^3-0.058*x^2+5.91*x+124.5;
K_s(x):=K(x)/x;
plot2d(K_s(x), [x,-100,200], [y, -100, 1000]);
b(x):=diff(K_s(x));
algsys([b(x)=0],[x]),realonly:true;
K_s(112.9);
E(x):= 5.99*x;
G(x):= E(x)-K(x);
algsys([G(x)>0],[x]),realonly:true;

obase may be assigned any integer between 2 and 36 (decimal), inclusive. When obase is greater than 10, the numerals comprise the decimal numerals 0 through 9 plus capital letters of the alphabet A, B, C, ..., as needed. A leading 0 digit is displayed if the leading digit is otherwise a letter. The numerals for base 36, the largest acceptable base, comprise 0 through 9, and A through Z.

See also ibase.

Examples:

          (%i1) obase : 2;
          (%o1)                          10
          (%i2) 2^8 - 1;
          (%o10)                      11111111
          (%i3) obase : 8;
          (%o3)                          10
          (%i4) 8^8 - 1;
          (%o4)                       77777777
          (%i5) obase : 16;
          (%o5)                          10
          (%i6) 16^8 - 1;
          (%o6)                       0FFFFFFFF
          (%i7) obase : 36;
          (%o7)                          10
          (%i8) 36^8 - 1;
          (%o8)                       0ZZZZZZZZ

(%o1)                                true
(%i2) 

Obase Example

Related Examples

obase

obase:16;

37;

Calculate

obase

obase:16.;

14;

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obase

obase:16;

195+23;

Calculate

obase-plot2d
plot2d(K_s(x), [x,-2,200], [y, -2, 1000]);

obase:10;

K(x):= 0.0003*x^3-0.5...

K_s(x):=K(x)/x;

Calculate

obase-plot2d
plot2d(K_s(x), [x,-100,200], [y, -100, 1000]);

obase:10;

K(x):= 0.0003*x^3-0.5...

K_s(x):=K(x)/x;

Calculate

obase

obase:16;

195+23;

Calculate

obase

obase:16.;

14;

Calculate

obase

obase: 2;

64;

Calculate