Questions on arithmetic operations in Mathematica.
Questions tagged [arithmetic]
97 questions
5
votes
14 answers
Sum of Squares without multiplication
I want to sum the squares for a given number N from 1 without using Multiplication. Is it possible?
user2212
- 75
- 2
4
votes
0 answers
Force computation on IEEE float/double
I'm checking two different procedures that will eventually be used with regular floating point arithmetic. I need to estimate numerical error arising from floating point arithmetic.
Is there a way to force computation on floating point…
Radost
- 211
- 1
- 4
2
votes
6 answers
Is there any function that creates an array from 1 to n, repeating each value m times?
I am trying to implement SparseArray, using the function With to give the condition for different matrix elements. I would need a function f, that instead of doing what Mod does,
Mod[{1, 2, 3, 4, 5, 6}, 3, 1]
{1, 2, 3, 1, 2, 3}
I would like to…
Mencia
- 1,324
- 12
- 26
2
votes
1 answer
Can we change Mathematica's original number system for arithmetic mod p or other arithmetic systems?
It seems Mathematica has a standard arithmetic system that resembles real numbers. Can we change Mathematica's original number system for arithmetic mod p so that whenever we write expressions, it sum and multiply like arithmetic mod p?
Red Banana
- 5,329
- 2
- 29
- 47
1
vote
1 answer
Does Mathematica always return a rational number in its simplified form?
If I enter: 1/RandomInteger[10^200]+1/RandomInteger[10^200]
I get (instantly) an exact fraction. Is this fraction in simplified (reduced) form? In other words is the greatest common divisor of the numerator and denominator equal to 1?.
Geoffrey Critzer
- 1,661
- 1
- 11
- 14
1
vote
1 answer
Why I'm getting 9999s after decimal and how do I fix it?
Check the screen shot. Why I'm getting 999s? It is suppose to be 127,977.52
Thanks in advance,
Quick solution: AccountingForm[58156.48 + 69821.04, 16]
And thanks to Yves Klett
Kruz
- 13
- 2
0
votes
0 answers
Roots in Mathematica
Example:
x = (-8)^(1/3)
Return:
2 (-1)^(1/3)
How simplifying?
I need an answer as x = -2
Thanks!
Dennis La Cotera
- 75
- 9
0
votes
0 answers
How to make the built-in analytic functions to use custom multiplication?
How to make the built-in functions like Log, Sin, Exp to work as power series but with custom multiplication operation, thus defining those functions on a space with custom multiplication?
Anixx
- 3,585
- 1
- 20
- 32
-1
votes
1 answer
Could this Be a Bug in V.11.1.1.0
Here is an elementary third root calculation of -8 (or any negative real number) with and without parentheses, but Mathematica seems to be given different answers!
In[1]:= -8^(1/3) // N
Out[1]= -2.
In[2]:= (-8)^(1/3) // N,
Out[2]= 1. + 1.73205…
D. Andrew
- 423
- 2
- 8
-4
votes
1 answer
Arithmetic Progression
How can I resolve these issues? I'm from Brazil and I don't have many things related to the subject here
**
In an arithmetic progression of 6 Terms, the reason is 5. The
product of the 1° with the latter is 12500. Determine the value of
3° Term Ps.…
