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realpart

realpart ((3-5*%i)/(5...

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realpart

a=2 + %i * 5;

b=realpart(a);

Calculate

realpart

realpart((im2*%i+re2)...

Calculate

realpart

f(x):=((x-3)*(x^2+6*x...

f(3);

realpart(f(%i-3));

Calculate

realpart-taylor

f=taylor((1+(b*y^2*x^...

g=realpart(f);

Calculate

realpart

f(x):=%e^(%i*x);

realpart(f(x));

Calculate

realpart-sqrt

realpart(sqrt(-3-2*%i...

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realpart-sinh-trigexpand

trigexpand(1/2*(exp(x...

trigexpand(sinh(x));

realpart(1/2*(exp(x+%...

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realpart-taylor

f=taylor((1+(b*y^2*x^...

g=realpart(f);

Calculate

realpart

a=2 + %i * 5;

b=realpart(a);

Calculate

realpart

Run Example
(%i1)y=((w^2*C^2*R*U)/(w^2*C^2*R^2  - 3* %i* w* C* R - 1));
                                      2  2
                                     w  C  R U
(%o1)                    y = -------------------------
                              2  2  2
                             w  C  R  - 3 %i w C R - 1
(%i2) realpart(y);
(%o2)                                  y
(%i3) 
Run Example
y=((w^2*C^2*R*U)/(w^2*C^2*R^2  - 3* %i* w* C* R - 1));
                                      2  2
                                     w  C  R U
(%o1)                    y = -------------------------
                              2  2  2
                             w  C  R  - 3 %i w C R - 1
(%i2) realpart(%);
(%o2)             
Run Example
a:2;
(%o1)                                  2
(%i2) b:0.45;
(%o2)                                0.45
(%i3) c:-0.3;
(%o3)                                - 0.3
(%i4) d:1.27;
(%o4)                                1.27
(%i5) f:0.25;
(%o5)                                0.25
(%i6) realpart(-(log(a*c)/(b+d)));
(%o6)                          0.29699164172441
(%i7) x0:realpart(log(a/c)/(d-b));
(%o7)                          2.313560957177904
(%i8) diff(1/x);
                                     del(x)
(%o8)                              - ------
                                        2
                                       x
(%i9) a*exp(b*x0)+c*exp(d*x0);
(%o9)                       8.8817841970012523E-16
(%i10) realpart(1-(c/a)*exp(x0*(d+b)));
(%o10)                         9.022137130140543
(%i11) plot2d( [  log(x), -log(1-exp(x)), -log(1+(c/a)*exp(x*(d-b))), x*b-log(f/a),[parametric, realpart(x0), t, [t, -10, 10]]],[x,-5,5]);
plotplot2d( [  log(x), -log(1-exp(x)), -log(1+(c/a)*exp(x*(d-b))), x*b-log(f/a),[parametric, realpart(x0), t, [t, -10, 10]]],[x,-5,5]);
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