WOLFRAM

Wolfram Language & System Documentation Center
Wolfram Language Home Page »

NonConstants
✖
NonConstants

NonConstants

is an option for D which gives a list of objects to be taken to depend implicitly on the differentiation variables.

Details

  • If c does not appear in the list of NonConstants, then D[c,x] is taken to be 0 unless c and x are identical expressions.

Examples

open allclose all

Basic Examples  (1)Summary of the most common use cases

Here c is treated as a constant under differentiation:

In[1]:=1
✖
https://wolfram.com/xid/0b8d382wba-y7ooi
Out[1]=1

Specify that c depends implicitly on x:

In[2]:=2
✖
https://wolfram.com/xid/0b8d382wba-cnebre
Out[2]=2

Specify that both c and d depend implicitly on x:

In[3]:=3
✖
https://wolfram.com/xid/0b8d382wba-i2vkcg
Out[3]=3

Properties & Relations  (2)Properties of the function, and connections to other functions

NonConstants allows D to emulate Dt:

In[1]:=1
✖
https://wolfram.com/xid/0b8d382wba-8femk
Out[1]=1

Constants allows Dt to emulate D:

In[1]:=1
✖
https://wolfram.com/xid/0b8d382wba-kma5z9
Out[1]=1
Wolfram Research (1988), NonConstants, Wolfram Language function, https://reference.wolfram.com/language/ref/NonConstants.html.
✖
Wolfram Research (1988), NonConstants, Wolfram Language function, https://reference.wolfram.com/language/ref/NonConstants.html.

Text

Wolfram Research (1988), NonConstants, Wolfram Language function, https://reference.wolfram.com/language/ref/NonConstants.html.

✖
Wolfram Research (1988), NonConstants, Wolfram Language function, https://reference.wolfram.com/language/ref/NonConstants.html.

CMS

Wolfram Language. 1988. "NonConstants." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NonConstants.html.

✖
Wolfram Language. 1988. "NonConstants." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NonConstants.html.

APA

Wolfram Language. (1988). NonConstants. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NonConstants.html

✖
Wolfram Language. (1988). NonConstants. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NonConstants.html

BibTeX

@misc{reference.wolfram_2025_nonconstants, author="Wolfram Research", title="{NonConstants}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/NonConstants.html}", note=[Accessed: 09-July-2025 ]}

✖
@misc{reference.wolfram_2025_nonconstants, author="Wolfram Research", title="{NonConstants}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/NonConstants.html}", note=[Accessed: 09-July-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_nonconstants, organization={Wolfram Research}, title={NonConstants}, year={1988}, url={https://reference.wolfram.com/language/ref/NonConstants.html}, note=[Accessed: 09-July-2025 ]}

✖
@online{reference.wolfram_2025_nonconstants, organization={Wolfram Research}, title={NonConstants}, year={1988}, url={https://reference.wolfram.com/language/ref/NonConstants.html}, note=[Accessed: 09-July-2025 ]}