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More pleasing higher order derivative - Messages
#1 Posted: 1/8/2023 11:46:05 PM
#2 Posted: 1/9/2023 11:19:36 AM
#3 Posted: 1/9/2023 12:37:18 PM
#4 Posted: 1/9/2023 1:19:06 PM
Maths Derivative GENERALISED algo.sm (9 KiB) downloaded 59 time(s).
#5 Posted: 1/9/2023 3:02:06 PM
SMath has a built-in prime operator ()'. It can be created but will not be evaluated in the base configuration of SMath Studio
The Maxima plugin links this operator to the function Diff(1), which computes the total derivative of an expression with respect to all variables in that expression. You can mark symbolic constants in the expression by making them custom units (writing them with a leading prime like 'y).
The function Diff(1) is always avaliable if the Maxima plugin is installed, yet the operator form must explicitly be "hijacked" by the command MaximaTakeover().
It is then available as diff(1) in the dynamic assistant.
You can create second derivatives using nested ()' operators but that doesn't look good. Perhaps appropriate operators could be defined in the custom glyphs plugin.

diff1.sm (8 KiB) downloaded 48 time(s).
The Maxima plugin links this operator to the function Diff(1), which computes the total derivative of an expression with respect to all variables in that expression. You can mark symbolic constants in the expression by making them custom units (writing them with a leading prime like 'y).
The function Diff(1) is always avaliable if the Maxima plugin is installed, yet the operator form must explicitly be "hijacked" by the command MaximaTakeover().
It is then available as diff(1) in the dynamic assistant.
You can create second derivatives using nested ()' operators but that doesn't look good. Perhaps appropriate operators could be defined in the custom glyphs plugin.
diff1.sm (8 KiB) downloaded 48 time(s).
Martin Kraska
Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
#6 Posted: 1/9/2023 6:56:03 PM
Hi. Some notes.
You can assign it to a partial derivative like operator inside SMath. (First example in the image)
Maxima is a great plugin. You can have it and prime as partial derivative, this is, it is not necessary to use units to mark variables other than the variable of the derivative. (Last example in the image)

diff1.sm (20 KiB) downloaded 51 time(s).
Best regards.
Alvaro.
WroteSMath has a built-in prime operator ()'. It can be created but will not be evaluated in the base configuration of SMath Studio ...
You can assign it to a partial derivative like operator inside SMath. (First example in the image)
Wrote... The Maxima plugin links this operator to the function Diff(1), which computes the total derivative of an expression with respect to all variables in that expression. You can mark symbolic constants in the expression by making them custom units (writing them with a leading prime like 'y).
Maxima is a great plugin. You can have it and prime as partial derivative, this is, it is not necessary to use units to mark variables other than the variable of the derivative. (Last example in the image)
diff1.sm (20 KiB) downloaded 51 time(s).
Best regards.
Alvaro.
#7 Posted: 1/9/2023 10:27:38 PM
#8 Posted: 1/9/2023 10:30:08 PM
@mkraska, @Razonar
Thank you for the exaples.
So I can use nested 1st order derivative to get higher order derivative.
Thank you for the exaples.
So I can use nested 1st order derivative to get higher order derivative.
#10 Posted: 1/9/2023 11:07:00 PM
Maths Derivative GENERALISED algo.sm (9 KiB) downloaded 76 time(s).
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