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Converting Piecewise function to C code

Converting ConditionalExpression to PiecewiseTransform Piecewise[] into sum of indicatorsIs there a way to symbolically invert a piecewise functionUnderstanding a piecewise function generated by MathematicaPiecewise function and integral functionPiecewise function with integer conditionsPiecewise function extractionForce derivative of piecewise function at boundary points to be one-sided derivativePiecewise-constant function with infinitely many piecesPiecewise function

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

5

$begingroup$

I'm trying to convert a function to C Code

f = D[Piecewise[{{x^2, -10 < x < 0}, {x, x > 0}}], x]

I decided to scan through conditions and corresponding output formulas, but the conditions are not expressed in proper form.

For example element f[[1]][[2, 2]] is

-10 < x < 0 // CForm

Inequality(-10,Less,x,Less,0)

Which looks nothing like a proper C Form. However inequality with one side:

f[[1]][[1, 2]] // CForm

Gives a proper string

x < -10

How do I get the proper form like x>-10&&x<0?

piecewise code-generation

share|improve this question

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

$endgroup$

add a comment | 

5

$begingroup$

I'm trying to convert a function to C Code

f = D[Piecewise[{{x^2, -10 < x < 0}, {x, x > 0}}], x]

I decided to scan through conditions and corresponding output formulas, but the conditions are not expressed in proper form.

For example element f[[1]][[2, 2]] is

-10 < x < 0 // CForm

Inequality(-10,Less,x,Less,0)

Which looks nothing like a proper C Form. However inequality with one side:

f[[1]][[1, 2]] // CForm

Gives a proper string

x < -10

How do I get the proper form like x>-10&&x<0?

piecewise code-generation

share|improve this question

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

$endgroup$

add a comment | 

$begingroup$

I'm trying to convert a function to C Code

f = D[Piecewise[{{x^2, -10 < x < 0}, {x, x > 0}}], x]

I decided to scan through conditions and corresponding output formulas, but the conditions are not expressed in proper form.

For example element f[[1]][[2, 2]] is

-10 < x < 0 // CForm

Inequality(-10,Less,x,Less,0)

Which looks nothing like a proper C Form. However inequality with one side:

f[[1]][[1, 2]] // CForm

Gives a proper string

x < -10

How do I get the proper form like x>-10&&x<0?

piecewise code-generation

share|improve this question

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

$endgroup$

share|improve this question

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

share|improve this question

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

asked 13 hours ago

Vsevolod A.Vsevolod A.

52922 silver badges1111 bronze badges

1 Answer
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6

$begingroup$

-10 < x < 0 // LogicalExpand // CForm



(* -10 < x && x < 0 *)

share|improve this answer

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

$endgroup$

add a comment | 

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6

$begingroup$

-10 < x < 0 // LogicalExpand // CForm



(* -10 < x && x < 0 *)

share|improve this answer

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

$endgroup$

add a comment | 

6

$begingroup$

-10 < x < 0 // LogicalExpand // CForm



(* -10 < x && x < 0 *)

share|improve this answer

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

$endgroup$

add a comment | 

$begingroup$

-10 < x < 0 // LogicalExpand // CForm



(* -10 < x && x < 0 *)

share|improve this answer

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

$endgroup$

-10 < x < 0 // LogicalExpand // CForm



(* -10 < x && x < 0 *)

share|improve this answer

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges

answered 13 hours ago

xzczdxzczd

29k66 gold badges8181 silver badges273273 bronze badges