scispace - formally typeset
Proceedings ArticleDOI

A unified algorithm for elementary functions

J. S. Walther
- pp 379-385
Reads0
Chats0
TLDR
This paper describes a single unified algorithm for the calculation of elementary functions including multiplication, division, sin, cos, tan, arctan, sinh, cosh, tanh, arCTanh, In, exp and square-root.
Abstract
This paper describes a single unified algorithm for the calculation of elementary functions including multiplication, division, sin, cos, tan, arctan, sinh, cosh, tanh, arctanh, In, exp and square-root The basis for the algorithm is coordinate rotation in a linear, circular, or hyperbolic coordinate system depending on which function is to be calculated The only operations required are shifting, adding, subtracting and the recall of prestored constants The limited domain of convergence of the algorithm is calculated, leading to a discussion of the modifications required to extend the domain for floating point calculations

read more

Citations
More filters
Journal ArticleDOI

Flexible, Scalable and Energy Efficient Bio-Signals Processing on the PULP Platform: A Case Study on Seizure Detection

TL;DR: It is demonstrated that PULP reduces energy consumption by up to 140× with respect to commercial low-power microcontrollers, being able to satisfy the real-time constraints typical of bio-medical applications, and breaking the barrier of microwatts for a 50-ms complete seizure detection.
Journal ArticleDOI

Simplex FastICA: An Accelerated and Low Complex Architecture Design Methodology for $n$ D FastICA

TL;DR: The proposed Simplex FICA is an accelerated and low complex architectural design methodology for FICA to attain high computation speed targeted for resource-constrained applications by exploiting the algorithmic redundancies of FICA.
Journal ArticleDOI

On the behaviour of low cost laser scanners in HW/SW particle filter SLAM applications

TL;DR: A hardware implementation on FPGA (field programmable gate arrays) of a PF applied to SLAM which aims to accelerate the execution time of the PF algorithm with moderate resource and confirmed the possible use of low cost laser scanner for different robotics applications.
Journal ArticleDOI

Error analysis and reduction for angle calculation using the CORDIC algorithm

TL;DR: This paper proposes a method based on the prescaling of the input operands and a modified CORDIC recurrence that is a suitable alternative to the input normalization with a smaller hardware cost and can also be used in pipelined architectures with redundant carry-save arithmetic.
Journal ArticleDOI

GH CORDIC-Based Architecture for Computing $N$ th Root of Single-Precision Floating-Point Number

TL;DR: Hardware implementation for computing arbitrary roots of a single-precision floating-point number based on Generalized Hyperbolic COordinate Rotation Digital Computer (GH CORDIC) algorithm and simulation results indicate that the proposed method is capable of calculating the LaTeX root with a relative error of 10−7 approximately.
References
More filters
Journal ArticleDOI

The CORDIC Trigonometric Computing Technique

TL;DR: The trigonometric algorithms used in this computer and the instrumentation of these algorithms are discussed in this paper.
Journal ArticleDOI

Decimal-Binary Conversions in CORDIC

TL;DR: The CORDIC conversion technique is sufficiently general to be applied to decimal-binary conversion problems involving other mixed radix systems and other decimal codes.
Related Papers (5)