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https://mathworld.wolfram.com/AbsoluteValue.html

Absolute Value -- from Wolfram MathWorld

The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...



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Absolute Value -- from Wolfram MathWorld

https://mathworld.wolfram.com/AbsoluteValue.html

The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...



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https://mathworld.wolfram.com/AbsoluteValue.html

Absolute Value -- from Wolfram MathWorld

The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...

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      Absolute Value -- from Wolfram MathWorld
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      The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...
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      The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...

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      Absolute Value -- from Wolfram MathWorld
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      The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...

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      Absolute Value -- from Wolfram MathWorld
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      The absolute value of a real number x is denoted |x| and defined as the "unsigned" portion of x, |x| = xsgn(x) (1) = {-x for x<=0; x for x>=0, (2) where sgn(x) is the sign function. The absolute value is therefore always greater than or equal to 0. The absolute value of x for real x is plotted above. The absolute value of a complex number z=x+iy, also called the complex modulus, is defined as |z|=sqrt(x^2+y^2). (3) This form is implemented in the Wolfram Language...
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