Which of these calculator companies changed its logo in 2010 from a simple wordmark to an abstract design representing the mathematical concept of approaching infinity?

In the world of mathematics education and technology, certain brands have revolutionized how we calculate, learn, and solve problems. One particular company created a logo that has become synonymous with advanced mathematical calculation tools used in classrooms worldwide. This poll tests your knowledge of iconic mathematics product branding that shaped generations of students and professionals alike.

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Texas Instruments, with a logo showing a rising curve approaching but never touching a horizontal asymptote
Wolfram Alpha, with a logo representing the convergence of an infinite series
Casio, with a logo showing the limit of a function as x approaches infinity
HP (Hewlett-Packard), with a logo depicting nested integrals approaching completeness