Equalities and Inequalities in the Standard Units Environment - Maple Help

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Equalities and Inequalities in the Standard Units Environment

Description

• 

In the Standard Units environment, the equality and inequality operators (=,<,,>,, and) are modified so that they perform the necessary operations on expressions with units.

• 

The properties of the five arithmetic operations are:

AUnita=BUnitbA=rB

AUnita<BUnitbA<rB

AUnitaBUnitbArB

AUnita>BUnitbA>rB

AUnitaBUnitbArB

AUnitaBUnitbArB

  

where a and b are units; A and B are coefficients; and r is the conversion factor from the unit b to the unit a.

Examples

Notes: 

– 

To enter a unit in 2-D Math input, select the unit from the appropriate Units palette. If the unit you want is not there, select unit and then enter the unit.

– 

In Maple 2015 and later versions, the double brackets around a unit are not displayed unless you are editing the unit.

withUnits&lsqb;Standard&rsqb;&colon;

3&apos;ft&apos;&equals;&apos;yd&apos;

3&equals;3

(1)

evalb

true

(2)

1.60&apos;m&apos;<&apos;mi&apos;

1.60<201168125

(3)

evalb

true

(4)

30.48&apos;cm&apos;&equals;&apos;ft&apos;

30.48&equals;76225

(5)

evalb

true

(6)

3&apos;ft&apos;&plus;3&apos;inch&apos;&equals;&apos;m&apos;

49535000&equals;1

(7)

evalb

false

(8)

See Also

equalities and inequalities, Units, Units/Standard


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