Difference: FloatingPointUnit (21 vs. 22)
Revision 222022-11-05 - PeterSchmid
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| f>s ( r -- n ) n is the single-cell signed-integer equivalent of the integer portion of r s>f ( n -- r ) r is the floating-point equivalent of the single-cell value n | ||||||||
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| < < | f>fx ( r -- x ) x is the fixed-point equivalent of the floating-point r fx>f ( x -- r ) r is the floating-point equivalent of the fixed-point x | |||||||
| > > | f>x ( r -- x ) x is the fixed-point equivalent of the floating-point r x>f ( x -- r ) r is the floating-point equivalent of the fixed-point x | |||||||
| pi ( -- r ) r is pi, approx. 3.14159274101257324 e ( -- r ) r is e, approx. 2.7182818 | ||||||||
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Words Using C Math Libraryfsin ( r1 -- r2 ) r2 is the sine of the radian angle r1 | ||||||||
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| > > | fcos ( r1 -- r2 ) r2 is the cosine of the radian angle r1 ftan ( r1 -- r2 ) r2 is the principal radian angle whose tangent is r1 fasin ( r1 -- r2 ) r2 is the principal radian angle whose sine is r1 facos ( r1 -- r2 ) r2 is the principal radian angle whose cosine is r1 fatan ( r1 -- r2 ) r2 is the principal radian angle whose tangent is r1 fsinh ( r1 -- r2 ) r2 is the hyperbolic sine of r1 fcosh ( r1 -- r2 ) r2 is the hyperbolic cosine of r1 ftanh ( r1 -- r2 ) r2 is the hyperbolic tangent of r1 fasinh ( r1 -- r2 ) r2 is the floating-point value whose hyperbolic sine is r1 facosh ( r1 -- r2 ) r2 is the floating-point value whose hyperbolic cosine is r1 fatanh ( r1 -- r2 ) r2 is the floating-point value whose hyperbolic tangent is r1 fceil ( r1 -- r2 ) return the smallest integral value that is not less than r1 ffloor ( r1 -- r2 ) Round r1 to an integral value using the "round toward negative infinity" rule, giving r2 fexp ( r1 -- r2 ) raise e to the power r1, giving r2. f** ( r1 r2 -- r3 ) raise r1 to the power r2, giving the product r3 fln ( r1 -- r2 ) r2 is the natural logarithm of r1 flog ( r1 -- r2 ) r2 is the base-ten logarithm of r1 | |||||||
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| < < | Fixed-Point Words | |||||||
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Fixed-point numbers (s31.32) are stored ( n-comma n-whole ) and can be handled like signed double numbers.
Because of the name conflict with the floating-point words I changed the names of the fixed-point word and use for fixed-point words x instead of f. | ||||||||
View topic | History: r44 < r43 < r42 < r41 | More topic actions...
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