ScientificConstants - Maple Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : Science and Engineering : Scientific Constants : Functions : ScientificConstants/GetConstant

ScientificConstants

  

GetConstant

  

return the physical constant definition

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

GetConstant( descriptor )

Parameters

descriptor

-

name; full name or symbol of a physical constant

Description

• 

The GetConstant( descriptor ) command returns the definition of a physical constant in the ScientificConstants package.

• 

For a nonderived physical constant, the expression sequence returned consists of the constant's full name followed by equations that specify its symbol, value, uncertainty, and units.

  

For a derived physical constant, the expression sequence returned consists of the constant's full name followed by equations that specify its symbol and derivation derive.

  

The right-hand side of the derivation equation is an expression that gives the derivation of the constant in terms of other physical constants, using their currently defined symbols.

• 

The expression sequence returned is in the same format used for the AddConstant function.

Examples

withScientificConstants:

GetConstantG

Newtonian_constant_of_gravitation,symbol=G,value=6.67310-11,uncertainty=1.010-13,units=m3kgs2

(1)

GetConstantme

electron_mass,symbol=me,derive=2R∞hcα2

(2)

See Also

Details of Commands for Physical Constants

Initial Physical Constants

ScientificConstants

ScientificConstants[AddConstant]

ScientificConstants[GetConstants]

ScientificConstants[HasConstant]

 


Download Help Document

Was this information helpful?



Please add your Comment (Optional)
E-mail Address (Optional)
What is ? This question helps us to combat spam